Tag: waste generation

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Questions Related to waste generation

Multiple choice economics waste and its management solid waste management origin of waste products e-wastes waste generation

What is the toxic substance contained by typical electronic waste?

  1. PCBs

  2. Dioxin

  3. Pesticide like compounds

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

Electronic waste contains various toxic substances, including lead, mercury, cadmium, and dioxins (often released during improper burning or processing). While heavy metals are also present, dioxin is a well-known toxic byproduct associated with e-waste processing.

Multiple choice economics waste and its management solid waste management origin of waste products e-wastes waste generation

E-waste contains hazardous substances that are harmful to the environment and human health if not properly treated or disposed of, therefore they must be handled with care.
What are the health hazards which can be caused by e-waste? 

  1. Brain

  2. Lung cancer

  3. DNA damage

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

Improper disposal of e-waste releases toxic chemicals that can cause a wide range of health issues, including neurological damage (brain), respiratory issues (lung cancer), and genetic damage (DNA damage).

Multiple choice economics waste and its management solid waste management origin of waste products e-wastes waste generation

What is e-waste?

  1. Hazardous chemical waste

  2. Waste electronic equipment

  3. Waste from nuclear power generation

  4. Environmental friendly waste
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Electronic waste or e-waste describes discarded electrical or electronic devices. Used electronics which are destined for reuse, resale, salvage, recycling or disposal are also considered e-waste.

Multiple choice social science waste generation and management origin of waste products e-wastes waste generation waste and its types

Select the correct statement out of the following.

  1. Electrostatic precipitators $ \left( { ESP } _{ s } \right) $ can remove over 99% particulate matter present in the exhaust from a thermal power plant.

  2. Over half of the e-wastes generated in developed countries are exported to developing countries, mainly to China, India and Pakistan, where metals like Cu, Fe, Si, Ni, etc., are recovered during recycling process.

  3. Use of nuclear energy has two very serous inherent problems first is accidental leakage and the second is safe disposal of radioactive wastes.

  4. All of these
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
  • An electrostatic precipitator($ESP _s$) is a device that removes suspended dust particles from a gas or exhaust by applying a high-voltage electrostatic charge and collecting the particles on charged plates. It can remove 99% of particulate matter from thermal power plant exhaust.
  • e-waste is discarded electronic appliances such as mobile phones, computers, and televisions. Over half of the e-waste generated in developed countries are exported to developing countries, mainly to China, India, and Pakistan, where metals like Cu, Fe, Si, Ni, etc., are recovered during the recycling process.
  • Nuclear waste is the radioactive waste material, for example from the use or reprocessing of nuclear fuel. Hence Use of nuclear energy has two very serious inherent problems first is accidental leakage and the second is the safe disposal of radioactive wastes. Hence It has been recommended that storage of nuclear waste after sufficient pretreatment should be done in suitably shielded containers buried within rocks about 500m deep to prevent its harmful effects.
  • So, the correct answer is 'All the above',
Multiple choice social science waste generation and management origin of waste products e-wastes waste generation waste and its types

The material generally used for sound proofing of rooms like a recording studio and auditorium, etc. is

  1. cotton

  2. coir

  3. wood

  4. styrofoam.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The material by and large utilized for sound sealing of rooms like chronicle studio, film lobby, assembly hall which assimilate sound and encourage in sealing is styrofoam. Earplugs are comprised of fine glass wool or cottonwood impregnated with wax while ear covers contain liquid seals or plastic froth for engrossing sound.

So, the correct option is 'styrofoam.'.

Multiple choice social science waste generation and management origin of waste products e-wastes waste generation waste and its types

Waste of water can be minimised by 

  1. Reuse of water

  2. Wasting the water during brushing

  3. Using more water for showers and toilets

  4. Both A and C
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Water resources are limited in an ecosystem. There is an urgent need to minimize the waste of water. It can be done by either reuse or recycle of water. Recycling of water can be done by purifying waste water and reusing again for another purpose. The various ways to reuse water is using treated water for toilet flushing, in agriculture, for industrial processes, etc.

Thus, the correct answer is option A. 

Multiple choice social science waste generation and management origin of waste products e-wastes waste generation waste and its types

Which of the following consequences is due to the over exploitation of natural resources by man?

  1. Increase in natural resources

  2. Ecological imbalance

  3. Increase in the ozone layer

  4. Reappearance of some extinct species
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Natural resources are the resources gifted by nature. these are useful for the sustenance of the living organism on earth. Overexploitation of natural resources leads to ecological balance. Human activities like deforestation is a major threat which causes global warming. Excessive mining shifting of land which causes volcanic eruptions.

So, the correct answer is option B.