Environmental Studies · General Awareness

Sustainability and Recycling

2,607 Questions

Sustainability and recycling practices focus on minimizing environmental impact through resource conservation. Topics include life cycle assessment, eco-friendly manufacturing, and the conversion of discarded items into new goods. These themes are common in environmental studies papers for various government exams.

Recycling of materialsEco-friendly textilesSustainable manufacturingWaste reduction strategiesLife cycle assessmentGreen packaging innovations

Sustainability and Recycling Questions

Multiple choice
  1. Iron nails

  2. Leather belts

  3. Silver foils

  4. Plastic mugs

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Leather belts are easily biodegradable. Leather product is naturally biodegradable and chemicals are added to prevent that. Leather products can last thousands of years and the toxic chemicals with which they are infused leach into the environment during that time. 

Multiple choice

Which word in the passage can replace the word 'reprocessed'?

Reading Passage: Paper
Directions: Read the passage carefully and answer the questions based on it.
Did you know that around 270 eucalyptus trees or 460 bamboo plants per tonne of paper produced are saved by the manufacture of handmade paper? Are you aware that handmade paper helps in preventing water, land and air pollution because very small quantities of chemicals are used compared to the large quantity of polluting chemicals used by paper mills? 
Handmade paper is an eco-friendly product and the demand for it is growing rapidly in the world. It is considered the best form of recycled paper. Not only does it have an elegant and exquisite surface for writing but is very strong and almost indestructible. Artists find it has an unmatched texture for drawing.
Paper manufacturing is one of the traditional industries of the world and its invention in China dates back to 105 AD. Indians probably used paper made from cellulose fibres during the third century AD. Before this period the leaves of palm trees were used in India. Papyrus, a kind of paper made from a reed of the same name that grew on the banks of the River Nile, was used in Egypt.
The handmade paper industry, which flourished in India during the Mughal period, declined with the establishment of paper mills in the 18th and 19th centuries. Inspired by Mahatma Gandhi it was revived during the freedom movement. Today it is a growing industry producing paper worth millions of rupees.

  1. saved

  2. handmade

  3. recycled

  4. flourished

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The answer is (3). It is considered the best form of recycled paper.

Multiple choice

Handmade paper is an eco-friendly product because

Reading Passage: Paper
Directions: Read the passage carefully and answer the questions based on it.
Did you know that around 270 eucalyptus trees or 460 bamboo plants per tonne of paper produced are saved by the manufacture of handmade paper? Are you aware that handmade paper helps in preventing water, land and air pollution because very small quantities of chemicals are used compared to the large quantity of polluting chemicals used by paper mills? 
Handmade paper is an eco-friendly product and the demand for it is growing rapidly in the world. It is considered the best form of recycled paper. Not only does it have an elegant and exquisite surface for writing but is very strong and almost indestructible. Artists find it has an unmatched texture for drawing.
Paper manufacturing is one of the traditional industries of the world and its invention in China dates back to 105 AD. Indians probably used paper made from cellulose fibres during the third century AD. Before this period the leaves of palm trees were used in India. Papyrus, a kind of paper made from a reed of the same name that grew on the banks of the River Nile, was used in Egypt.
The handmade paper industry, which flourished in India during the Mughal period, declined with the establishment of paper mills in the 18th and 19th centuries. Inspired by Mahatma Gandhi it was revived during the freedom movement. Today it is a growing industry producing paper worth millions of rupees.

  1. small amounts of chemicals are used in its manufacture

  2. it requires fewer trees and plants

  3. it is a recycled product

  4. it is indestructible

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Choice (1) is the answer, (2) is not mentioned, (3) is incorrect as it is not stated as a reason, but as a feature of the handmade paper. (4) cannot be an eco-friendly situation.

Multiple choice
  1. Reduce, Reproduce, Recycle and Recover

  2. Reduce, Recycle, Redevelop and Recover

  3. Reduce, Reproduce, Redevelop and Recover

  4. Reduce, Reuse, Recycle and Recover

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The 4R principle refers to the wisest usage of the available resources. It does not deal with production or development of more resources. So, the correct option is 'Reduce, Reuse, Recycle and Recover'.

Multiple choice
  1. plastic bags are light

  2. paper bags are stronger

  3. plastic bags are not bio-degradable

  4. paper bags are not biodegradable

  5. paper bags are not transparent

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Yes, plastic bags are not bio-degradable, so they cause the soil pollution.

Multiple choice

What alternative do the scientists suggest for the problem associated with the use of plastics?

Directions: Read the following passage carefully and answer the given question.

According to the United States Environmental Protection Agency (USEPA), plastic bags are a better option than paper bags from the environment’s point of view. Many studies comparing plastic versus paper show that plastic bags have less net environmental effect than paper bags, requiring less energy for transport, production and recycling and because of all these, plastic generates less greenhouse gases. They cause less air and water pollution and can get compressed to a small size in landfills. Plastic bags are sterile and thus are a better option for the transportation of eatables and medicines.
However there is another side of using plastic. Plastics are manufactured from petroleum. This brings a host of other issues e.g. destruction of habitat. Their manufacturing involves chemicals, many of which have not been sufficiently tested for their toxicological impact on humans and animals.Exacerbating the problem is that science has only advanced to detect plastic components in human bodies and then link it to human ailments and diseases. Where science has been unable to help is that it has largely failed to invent a solution to the hazards caused by it. Making the situation dismalis the fact that the hazard is closer than it appears. Teflon, PVC, Polyethylene, polystyrene in utensils and various silicones in hair and body care products accumulate in the body and lead to serious diseases. Plasticproducing companies are often chemical companies or subsidiaries of chemical companies, both with poor track records when it comes to their adherence to regulatory compliance and their willingness to perform toxicological analysis on the products that they make.
Plastics often drain component chemicals, including hazardous chemicals when temperature changes beyond a certain point. It is for this reason that toxicologists do not recommend storing very cold food in plastics or heating food (microwaving especially) in plastics. Also, plastics are durable materials. Thus, they are hard to eliminate once used and create tremendous waste. While some common plastics can be recycled the vast majority cannot be recycled.
Scientists suggest the use of Biodegradable plastics as an alternative to this persisting problem. These are the plastics that can decompose in the natural environment. Biodegradation of plastics can be achieved by enabling microorganisms in the environment to metabolize the molecular structure of plastic films to produce an inert humus-like material that is less harmful to the environment. They may be composed of either bio-plastics, which are plastics whose components are derived from renewable raw materials, or petroleum-based plastics. The use of bio-active compounds compounded with swelling agents ensures that, when combined with heat and moisture, they expand the plastic’s molecular structure and allow the bio-active compounds to metabolise and neutralize the plastic.
Various countries have been adopting different methods to discourage the use of plastic. Growing awareness in the UK of the problems caused by indiscriminate use of plastic bags is encouraging retailers to reward customers who bring their own bags or who reuse or recycle existing bags. This is called the ‘Green Bag Scheme’. In other countries retailers have stopped providing free plastic bags with purchases and have been selling cloth bags for very minimalistic prices.

  1. Use of biodegradable plastics

  2. Treatment of hazards caused by the use of plastics

  3. Strict compliance of the chemical companies to toxicological tests of their products

  4. Banning the use of plastic throughout the world

  5. None of these

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The passage clearly states in the fourth paragraph: 'Scientists suggest the use of Biodegradable plastics as an alternative to this persisting problem.' The author explains that biodegradable plastics can decompose in the natural environment through microorganisms that metabolize the plastic structure, producing less harmful materials. Option A directly matches this stated alternative.

Multiple choice

What does the author mean by 'another side of using plastic'?

Directions: Read the following passage carefully and answer the given question.

According to the United States Environmental Protection Agency (USEPA), plastic bags are a better option than paper bags from the environment’s point of view. Many studies comparing plastic versus paper show that plastic bags have less net environmental effect than paper bags, requiring less energy for transport, production and recycling and because of all these, plastic generates less greenhouse gases. They cause less air and water pollution and can get compressed to a small size in landfills. Plastic bags are sterile and thus are a better option for the transportation of eatables and medicines.
However there is another side of using plastic. Plastics are manufactured from petroleum. This brings a host of other issues e.g. destruction of habitat. Their manufacturing involves chemicals, many of which have not been sufficiently tested for their toxicological impact on humans and animals.Exacerbating the problem is that science has only advanced to detect plastic components in human bodies and then link it to human ailments and diseases. Where science has been unable to help is that it has largely failed to invent a solution to the hazards caused by it. Making the situation dismalis the fact that the hazard is closer than it appears. Teflon, PVC, Polyethylene, polystyrene in utensils and various silicones in hair and body care products accumulate in the body and lead to serious diseases. Plasticproducing companies are often chemical companies or subsidiaries of chemical companies, both with poor track records when it comes to their adherence to regulatory compliance and their willingness to perform toxicological analysis on the products that they make.
Plastics often drain component chemicals, including hazardous chemicals when temperature changes beyond a certain point. It is for this reason that toxicologists do not recommend storing very cold food in plastics or heating food (microwaving especially) in plastics. Also, plastics are durable materials. Thus, they are hard to eliminate once used and create tremendous waste. While some common plastics can be recycled the vast majority cannot be recycled.
Scientists suggest the use of Biodegradable plastics as an alternative to this persisting problem. These are the plastics that can decompose in the natural environment. Biodegradation of plastics can be achieved by enabling microorganisms in the environment to metabolize the molecular structure of plastic films to produce an inert humus-like material that is less harmful to the environment. They may be composed of either bio-plastics, which are plastics whose components are derived from renewable raw materials, or petroleum-based plastics. The use of bio-active compounds compounded with swelling agents ensures that, when combined with heat and moisture, they expand the plastic’s molecular structure and allow the bio-active compounds to metabolise and neutralize the plastic.
Various countries have been adopting different methods to discourage the use of plastic. Growing awareness in the UK of the problems caused by indiscriminate use of plastic bags is encouraging retailers to reward customers who bring their own bags or who reuse or recycle existing bags. This is called the ‘Green Bag Scheme’. In other countries retailers have stopped providing free plastic bags with purchases and have been selling cloth bags for very minimalistic prices.

  1. These are disadvantages of using plastic.

  2. Using biodegradable plastic instead of non-biodegradable plastic

  3. Paper bags are better option than plastic bags

  4. Many retail stores sell cloth bags at lower price.

  5. None of these

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The phrase 'another side of using plastic' appears after the first paragraph which discusses advantages of plastic bags (less energy, less pollution, sterile). The author then presents 'another side' which lists all the disadvantages and hazards: petroleum-based manufacturing, habitat destruction, toxic chemicals, accumulation in human bodies, and diseases. The author is presenting the negative counterpoint to the previously mentioned benefits.

Multiple choice

Which of the following is/are the author's views about the companies producing plastic products? (1) These companies are mainly responsible for the hazards caused to the environment due to plastics. (2) Such companies are chemical companies themselves or a subsidiary of such companies. (3) Such companies do not perofrm toxicological tests on their products.

Directions: Read the following passage carefully and answer the given question.

According to the United States Environmental Protection Agency (USEPA), plastic bags are a better option than paper bags from the environment’s point of view. Many studies comparing plastic versus paper show that plastic bags have less net environmental effect than paper bags, requiring less energy for transport, production and recycling and because of all these, plastic generates less greenhouse gases. They cause less air and water pollution and can get compressed to a small size in landfills. Plastic bags are sterile and thus are a better option for the transportation of eatables and medicines.
However there is another side of using plastic. Plastics are manufactured from petroleum. This brings a host of other issues e.g. destruction of habitat. Their manufacturing involves chemicals, many of which have not been sufficiently tested for their toxicological impact on humans and animals.Exacerbating the problem is that science has only advanced to detect plastic components in human bodies and then link it to human ailments and diseases. Where science has been unable to help is that it has largely failed to invent a solution to the hazards caused by it. Making the situation dismalis the fact that the hazard is closer than it appears. Teflon, PVC, Polyethylene, polystyrene in utensils and various silicones in hair and body care products accumulate in the body and lead to serious diseases. Plasticproducing companies are often chemical companies or subsidiaries of chemical companies, both with poor track records when it comes to their adherence to regulatory compliance and their willingness to perform toxicological analysis on the products that they make.
Plastics often drain component chemicals, including hazardous chemicals when temperature changes beyond a certain point. It is for this reason that toxicologists do not recommend storing very cold food in plastics or heating food (microwaving especially) in plastics. Also, plastics are durable materials. Thus, they are hard to eliminate once used and create tremendous waste. While some common plastics can be recycled the vast majority cannot be recycled.
Scientists suggest the use of Biodegradable plastics as an alternative to this persisting problem. These are the plastics that can decompose in the natural environment. Biodegradation of plastics can be achieved by enabling microorganisms in the environment to metabolize the molecular structure of plastic films to produce an inert humus-like material that is less harmful to the environment. They may be composed of either bio-plastics, which are plastics whose components are derived from renewable raw materials, or petroleum-based plastics. The use of bio-active compounds compounded with swelling agents ensures that, when combined with heat and moisture, they expand the plastic’s molecular structure and allow the bio-active compounds to metabolise and neutralize the plastic.
Various countries have been adopting different methods to discourage the use of plastic. Growing awareness in the UK of the problems caused by indiscriminate use of plastic bags is encouraging retailers to reward customers who bring their own bags or who reuse or recycle existing bags. This is called the ‘Green Bag Scheme’. In other countries retailers have stopped providing free plastic bags with purchases and have been selling cloth bags for very minimalistic prices.

  1. Only (1)

  2. Both (2) and (3)

  3. Both (1) and (3)

  4. Only (2)

  5. None of these

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The passage states: 'Plastic producing companies are often chemical companies or subsidiaries of chemical companies, both with poor track records when it comes to their adherence to regulatory compliance and their willingness to perform toxicological analysis on the products that they make.' This directly supports statements (2) and (3). Statement (1) is not supported - the passage doesn't claim these companies are 'mainly responsible' for hazards, but rather describes their poor compliance practices.

Multiple choice

Which steps have been taken in UK to encourage the use of alternatives to plastic bags?

Directions: Read the following passage carefully and answer the given question.

According to the United States Environmental Protection Agency (USEPA), plastic bags are a better option than paper bags from the environment’s point of view. Many studies comparing plastic versus paper show that plastic bags have less net environmental effect than paper bags, requiring less energy for transport, production and recycling and because of all these, plastic generates less greenhouse gases. They cause less air and water pollution and can get compressed to a small size in landfills. Plastic bags are sterile and thus are a better option for the transportation of eatables and medicines.
However there is another side of using plastic. Plastics are manufactured from petroleum. This brings a host of other issues e.g. destruction of habitat. Their manufacturing involves chemicals, many of which have not been sufficiently tested for their toxicological impact on humans and animals.Exacerbating the problem is that science has only advanced to detect plastic components in human bodies and then link it to human ailments and diseases. Where science has been unable to help is that it has largely failed to invent a solution to the hazards caused by it. Making the situation dismalis the fact that the hazard is closer than it appears. Teflon, PVC, Polyethylene, polystyrene in utensils and various silicones in hair and body care products accumulate in the body and lead to serious diseases. Plasticproducing companies are often chemical companies or subsidiaries of chemical companies, both with poor track records when it comes to their adherence to regulatory compliance and their willingness to perform toxicological analysis on the products that they make.
Plastics often drain component chemicals, including hazardous chemicals when temperature changes beyond a certain point. It is for this reason that toxicologists do not recommend storing very cold food in plastics or heating food (microwaving especially) in plastics. Also, plastics are durable materials. Thus, they are hard to eliminate once used and create tremendous waste. While some common plastics can be recycled the vast majority cannot be recycled.
Scientists suggest the use of Biodegradable plastics as an alternative to this persisting problem. These are the plastics that can decompose in the natural environment. Biodegradation of plastics can be achieved by enabling microorganisms in the environment to metabolize the molecular structure of plastic films to produce an inert humus-like material that is less harmful to the environment. They may be composed of either bio-plastics, which are plastics whose components are derived from renewable raw materials, or petroleum-based plastics. The use of bio-active compounds compounded with swelling agents ensures that, when combined with heat and moisture, they expand the plastic’s molecular structure and allow the bio-active compounds to metabolise and neutralize the plastic.
Various countries have been adopting different methods to discourage the use of plastic. Growing awareness in the UK of the problems caused by indiscriminate use of plastic bags is encouraging retailers to reward customers who bring their own bags or who reuse or recycle existing bags. This is called the ‘Green Bag Scheme’. In other countries retailers have stopped providing free plastic bags with purchases and have been selling cloth bags for very minimalistic prices.

  1. The UK government has banned the use of plastic throughout the country.

  2. The retailers in UK have been selling cloth bags at very low prices.

  3. The retailers reward the customers who bring their own bags or use the recycled bags.

  4. The government imposes heavy fine on those using plastic bags.

  5. None of these

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The passage specifically describes UK's approach: 'Growing awareness in the UK of the problems caused by indiscriminate use of plastic bags is encouraging retailers to reward customers who bring their own bags or who reuse or recycle existing bags. This is called the 'Green Bag Scheme'.' Option C accurately reflects this incentive-based approach. Options A, B, and D describe measures taken in 'other countries' not specifically the UK.

Multiple choice

Which of the following is not true in context of the passage?

Directions: Read the following passage carefully and answer the given question.

According to the United States Environmental Protection Agency (USEPA), plastic bags are a better option than paper bags from the environment’s point of view. Many studies comparing plastic versus paper show that plastic bags have less net environmental effect than paper bags, requiring less energy for transport, production and recycling and because of all these, plastic generates less greenhouse gases. They cause less air and water pollution and can get compressed to a small size in landfills. Plastic bags are sterile and thus are a better option for the transportation of eatables and medicines.
However there is another side of using plastic. Plastics are manufactured from petroleum. This brings a host of other issues e.g. destruction of habitat. Their manufacturing involves chemicals, many of which have not been sufficiently tested for their toxicological impact on humans and animals.Exacerbating the problem is that science has only advanced to detect plastic components in human bodies and then link it to human ailments and diseases. Where science has been unable to help is that it has largely failed to invent a solution to the hazards caused by it. Making the situation dismalis the fact that the hazard is closer than it appears. Teflon, PVC, Polyethylene, polystyrene in utensils and various silicones in hair and body care products accumulate in the body and lead to serious diseases. Plasticproducing companies are often chemical companies or subsidiaries of chemical companies, both with poor track records when it comes to their adherence to regulatory compliance and their willingness to perform toxicological analysis on the products that they make.
Plastics often drain component chemicals, including hazardous chemicals when temperature changes beyond a certain point. It is for this reason that toxicologists do not recommend storing very cold food in plastics or heating food (microwaving especially) in plastics. Also, plastics are durable materials. Thus, they are hard to eliminate once used and create tremendous waste. While some common plastics can be recycled the vast majority cannot be recycled.
Scientists suggest the use of Biodegradable plastics as an alternative to this persisting problem. These are the plastics that can decompose in the natural environment. Biodegradation of plastics can be achieved by enabling microorganisms in the environment to metabolize the molecular structure of plastic films to produce an inert humus-like material that is less harmful to the environment. They may be composed of either bio-plastics, which are plastics whose components are derived from renewable raw materials, or petroleum-based plastics. The use of bio-active compounds compounded with swelling agents ensures that, when combined with heat and moisture, they expand the plastic’s molecular structure and allow the bio-active compounds to metabolise and neutralize the plastic.
Various countries have been adopting different methods to discourage the use of plastic. Growing awareness in the UK of the problems caused by indiscriminate use of plastic bags is encouraging retailers to reward customers who bring their own bags or who reuse or recycle existing bags. This is called the ‘Green Bag Scheme’. In other countries retailers have stopped providing free plastic bags with purchases and have been selling cloth bags for very minimalistic prices.

  1. Some countries have stopped providing free plastic bags to customers to discourage the use of plastic

  2. The bio-active compounds alongwith swelling agents ensure that plastic is neutralised in the presence of heat and moisture.

  3. Many plastic products do not undergo toxicological test.

  4. Being durable, plastic creates a lot of waste.

  5. All are true.

Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

Evaluating each option: (A) is true - 'In other countries retailers have stopped providing free plastic bags'; (B) is true - the passage explains bio-active compounds with swelling agents expand plastic's structure to neutralize it; (C) is true - 'many of which have not been sufficiently tested'; (D) is true - 'they are hard to eliminate once used and create tremendous waste'. Since all statements A-D are true according to the passage, option E 'All are true' is the correct answer.

Multiple choice

According to the author, what is the problem with manufacturing plastic products?

Directions: Read the following passage carefully and answer the given question.

According to the United States Environmental Protection Agency (USEPA), plastic bags are a better option than paper bags from the environment’s point of view. Many studies comparing plastic versus paper show that plastic bags have less net environmental effect than paper bags, requiring less energy for transport, production and recycling and because of all these, plastic generates less greenhouse gases. They cause less air and water pollution and can get compressed to a small size in landfills. Plastic bags are sterile and thus are a better option for the transportation of eatables and medicines.
However there is another side of using plastic. Plastics are manufactured from petroleum. This brings a host of other issues e.g. destruction of habitat. Their manufacturing involves chemicals, many of which have not been sufficiently tested for their toxicological impact on humans and animals.Exacerbating the problem is that science has only advanced to detect plastic components in human bodies and then link it to human ailments and diseases. Where science has been unable to help is that it has largely failed to invent a solution to the hazards caused by it. Making the situation dismalis the fact that the hazard is closer than it appears. Teflon, PVC, Polyethylene, polystyrene in utensils and various silicones in hair and body care products accumulate in the body and lead to serious diseases. Plasticproducing companies are often chemical companies or subsidiaries of chemical companies, both with poor track records when it comes to their adherence to regulatory compliance and their willingness to perform toxicological analysis on the products that they make.
Plastics often drain component chemicals, including hazardous chemicals when temperature changes beyond a certain point. It is for this reason that toxicologists do not recommend storing very cold food in plastics or heating food (microwaving especially) in plastics. Also, plastics are durable materials. Thus, they are hard to eliminate once used and create tremendous waste. While some common plastics can be recycled the vast majority cannot be recycled.
Scientists suggest the use of Biodegradable plastics as an alternative to this persisting problem. These are the plastics that can decompose in the natural environment. Biodegradation of plastics can be achieved by enabling microorganisms in the environment to metabolize the molecular structure of plastic films to produce an inert humus-like material that is less harmful to the environment. They may be composed of either bio-plastics, which are plastics whose components are derived from renewable raw materials, or petroleum-based plastics. The use of bio-active compounds compounded with swelling agents ensures that, when combined with heat and moisture, they expand the plastic’s molecular structure and allow the bio-active compounds to metabolise and neutralize the plastic.
Various countries have been adopting different methods to discourage the use of plastic. Growing awareness in the UK of the problems caused by indiscriminate use of plastic bags is encouraging retailers to reward customers who bring their own bags or who reuse or recycle existing bags. This is called the ‘Green Bag Scheme’. In other countries retailers have stopped providing free plastic bags with purchases and have been selling cloth bags for very minimalistic prices.

  1. These products are not energy efficient.

  2. These products produce greenhouse gases, which are harmful to environment.

  3. The chemicals involved in their production are not tested for impact on living beings.

  4. It swells as soon as it comes in contact with heat and moisture.

  5. None of these

Reveal answer Fill a bubble to check yourself
D Correct answer
Multiple choice

Why does USEPA suggest that plastic bags are a better option than paper bags?

Directions: Read the following passage carefully and answer the given question.

According to the United States Environmental Protection Agency (USEPA), plastic bags are a better option than paper bags from the environment’s point of view. Many studies comparing plastic versus paper show that plastic bags have less net environmental effect than paper bags, requiring less energy for transport, production and recycling and because of all these, plastic generates less greenhouse gases. They cause less air and water pollution and can get compressed to a small size in landfills. Plastic bags are sterile and thus are a better option for the transportation of eatables and medicines.
However there is another side of using plastic. Plastics are manufactured from petroleum. This brings a host of other issues e.g. destruction of habitat. Their manufacturing involves chemicals, many of which have not been sufficiently tested for their toxicological impact on humans and animals.Exacerbating the problem is that science has only advanced to detect plastic components in human bodies and then link it to human ailments and diseases. Where science has been unable to help is that it has largely failed to invent a solution to the hazards caused by it. Making the situation dismalis the fact that the hazard is closer than it appears. Teflon, PVC, Polyethylene, polystyrene in utensils and various silicones in hair and body care products accumulate in the body and lead to serious diseases. Plasticproducing companies are often chemical companies or subsidiaries of chemical companies, both with poor track records when it comes to their adherence to regulatory compliance and their willingness to perform toxicological analysis on the products that they make.
Plastics often drain component chemicals, including hazardous chemicals when temperature changes beyond a certain point. It is for this reason that toxicologists do not recommend storing very cold food in plastics or heating food (microwaving especially) in plastics. Also, plastics are durable materials. Thus, they are hard to eliminate once used and create tremendous waste. While some common plastics can be recycled the vast majority cannot be recycled.
Scientists suggest the use of Biodegradable plastics as an alternative to this persisting problem. These are the plastics that can decompose in the natural environment. Biodegradation of plastics can be achieved by enabling microorganisms in the environment to metabolize the molecular structure of plastic films to produce an inert humus-like material that is less harmful to the environment. They may be composed of either bio-plastics, which are plastics whose components are derived from renewable raw materials, or petroleum-based plastics. The use of bio-active compounds compounded with swelling agents ensures that, when combined with heat and moisture, they expand the plastic’s molecular structure and allow the bio-active compounds to metabolise and neutralize the plastic.
Various countries have been adopting different methods to discourage the use of plastic. Growing awareness in the UK of the problems caused by indiscriminate use of plastic bags is encouraging retailers to reward customers who bring their own bags or who reuse or recycle existing bags. This is called the ‘Green Bag Scheme’. In other countries retailers have stopped providing free plastic bags with purchases and have been selling cloth bags for very minimalistic prices.

  1. The plastic bags are inexpensive.

  2. Plastic bags can be tested for toxic chemicals.

  3. Paper bags do not generate greenhouse gases.

  4. Plastic bags require less energy as compared to paper for transportation, production and recycling.

  5. None of these

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The passage states: 'plastic bags have less net environmental effect than paper bags, requiring less energy for transport, production and recycling and because of all these, plastic generates less greenhouse gases.' It also mentions plastics cause less air and water pollution and can be compressed in landfills. The USEPA position is based on energy efficiency across the lifecycle - transportation, production, and recycling.

Multiple choice
  1. waste

  2. spoilage

  3. scrap

  4. defective

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Right answer because defectives represent the part of production that does not meet dimensional or quality specifications of a product but which can be reworked by additional applications of material, labour etc. and made into saleable condition.