Environmental Studies · General Awareness

Waste Management and Pollution

2,184 Questions

Waste management and pollution control address waste-to-energy technologies, hazardous disposal, and organic recycling methods. The questions cover landfilling, bioremediation, and marine debris indicators. This topic holds significant weight in UPSC, State PSC, and SSC general studies and environmental exams.

Waste-to-energy technologiesHazardous waste disposalBiogas storage methodsOrganic waste compostingPlastic pollution

Waste Management and Pollution Questions

Multiple choice chemistry man made materials plastic and environment pollution due to plastics environmental impact: plastics

What are biodegradable compounds?

  1. Compounds which can not be decomposed

  2. Compounds which can be decomposed by man-made processes

  3. Compounds which can be decomposed by natural processes

  4. All of the above
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Biodegradable compounds are compounds which get disposed through natural processes, such as action of bacteria. e.g peels of fruits, vegetables, paper.

Multiple choice chemistry man made materials plastic and environment pollution due to plastics environmental impact: plastics

_____ waste products can also be called green waste, food waste, or organic waste.

  1. Biodegradable

  2. Non-Biodegradable

  3. Chemidegradable

  4. Physidegradable
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Biodegradable waste consists of plant and animal waste that is broken down by other living organism, substances that are broken down by biological processes are said to be biodegradable. Biodegradable waste products can also be called green waste, food waste, or organic waste.

Multiple choice chemistry synthetic fibres and plastics plastic and environment pollution due to plastics environmental impact: plastics

_____ is used to destroy the household waste,chemical waste and biological waste (from hospitals)  to $CO _2$ and $H _2O$?

  1. Sewage treatment plant

  2. Incineration

  3. Dumping

  4. Recycling
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Incineration: A high temperature of above 1273K is required to convert the industrial, household and biological waste along with plentiful of oxygen supply into gases. Waste is converted into Carbon-dioxide and water 

Multiple choice chemistry synthetic fibres and plastics plastic and environment pollution due to plastics environmental impact: plastics

Which of the following process uses electrified gas which has a very high temperature?

  1. Sewage treatment

  2. Plasma gasification

  3. Composting

  4. Dumping
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Plasma is primarily an electrically charged or highly ionised gas. it produces temperature of $13000^0F$.
Waste molecular bonds are broken and the disposal provides renewable energy in plasma gasification.

Multiple choice chemistry synthetic fibres and plastics plastic and environment pollution due to plastics environmental impact: plastics

__________ is the process in which waste is buried in the land.

  1. Landfill or dumping

  2. Recycling

  3. Incineration

  4. Sewage treatment
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Dumping or landfill focuses attention on burying the waste in the land. Dumping of waste is good for the soil as it contains compounds of nitrogen and phosphorous which acts as fertilizers.

Multiple choice chemistry synthetic fibres and plastics plastic and environment pollution due to plastics environmental impact: plastics

Which of the following is not an example of waste management?

  1. Sewage treatment

  2. Composting

  3. Weeding

  4. Dumping
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Weeding is an important control method practiced in many crops. The removal of weeds is useful because these unwanted plants compete with the crop for space, water and nutrients.

While all the other options are an example of waste management where waste is used to produce some useful form of energy.

Multiple choice solid waste management environmental management biology

Solid waste can be classified into

  1. Household waste

  2. Industrial waste

  3. Biomedical waste

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
Solid waste can be classified into different types depending on their source:
a) Household waste is generally classified as municipal waste, 
b) Industrial waste as hazardous waste, 
c) Biomedical waste or hospital waste as infectious waste.
Multiple choice solid waste management environmental management biology

________ is considered as a thermal treatment.

  1. Incineration

  2. Denaturation

  3. Recycling

  4. None of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Incineration is a waste treatment process that involves the combustion of organic substances contained in waste materials. Incineration and other high-temperature waste treatment systems are described as "thermal treatment". 

Multiple choice solid waste management environmental management biology

How much solid waste is produced by USA urban areas per day?

  1. 8 lac tons

  2. 7 lac tons

  3. 9 lac tons

  4. 2 lac tons
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Based on standard environmental science textbooks often used in this curriculum, the estimated daily solid waste production in US urban areas is cited as 7 lac tons.

Multiple choice solid waste management environmental management biology

Vermi-composting is a natural method of

  1. Producing compost manure

  2. Producing worms

  3. Managing waste it creates

  4. Destroying worms
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Vermi-composting uses earthworms to break down organic waste into nutrient-rich compost, which serves as a natural method for producing manure.

Multiple choice solid waste management environmental management biology

Where does combustion of solid waste take place?

  1. Pyrolysis Reactor

  2. Pyrolysis Chamber

  3. Simple Reactor

  4. Simple chamber
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

In waste management, the combustion of solid waste for energy or volume reduction is typically conducted within a specialized unit known as a pyrolysis reactor or incinerator chamber.

Multiple choice solid waste management environmental management biology

What is an Incinerator?

  1. Furnace used for burning solid waste

  2. Furnace used for treating liquid waste

  3. Both a & b

  4. None of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

An incinerator is a furnace or apparatus designed to burn waste materials, specifically solid waste, at high temperatures to reduce its volume and toxicity.

Multiple choice solid waste management environmental management biology

In which method all pathogens and insects are destroyed?

  1. Incineration

  2. Landfilling

  3. Pyrolysis

  4. Composition
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Incineration involves burning waste at very high temperatures, which effectively destroys pathogens, bacteria, and insects that might be present in the waste.