Tag: reduce, recycle, reuse

Questions Related to reduce, recycle, reuse

Biodegradable wastes should be separated and kept in blue colour bins for garbage collectors.

biology waste products reduce, recycle, reuse importance of the conservation of natural resources recycling

  1. True

  2. False

  3. Either

  4. Neither

Show answer
Correct Option: B
Explanation:
Biodegradable wastes can be decomposed by the action of microbes. They are kept in green coloured bins for garbage collectors. Green bins are meant for collecting wet waste such as kitchen waste, fruit peels, food items etc. Blue coloured bins are meant for collecting dry waste which include plastic items, glass jars, metal cans, paper bags, polybags etc. which can be recycled or reused. 
Hence, the statement given in the question is incorrect.
So, the correct answer is 'False'. 

In the following groups of materials, which group(s) contains only non-biodegradable items?

biology waste products reduce, recycle, reuse importance of the conservation of natural resources recycling

  1. wood, paper, leather

  2. polythene, detergent, PVC

  3. plastic, detergent, grass

  4. plastic, bakelite, DDT

Show answer
Correct Option: B,D
Explanation:
Non-biodegradable substances are the substances that can't be decomposed or degraded into simpler molecules by the action of microbes. Therefore these substances remain in nature for a long period of time. These include polythene, detergent, PVC (Polyvinyl chloride, a synthetic polymer of plastic) plastic, bakelite, DDT (a pesticide) etc.
Biodegradable substances can be decomposed into simpler molecules by the action of microbes. These include wood, paper, leather, grass etc.
So, the correct answer is option B and D.

Multiple Choice Questions
Which one is non biodegradable

biology waste products reduce, recycle, reuse importance of the conservation of natural resources recycling

  1. sewage

  2. market garbage

  3. liverstock waste

  4. DDT

Show answer
Correct Option: D
Explanation:
DDT (dichlorodiphenyltrichloroethane) is a colorless and crystalline organochlorine known for its insecticidal properties.  It is nonbiodegradable and tends to accumulate and magnify in amount due to subsequent uses posing grave environmental impacts.
So, the correct answer is option D, DDT.

Non - biodegradable substances are the one which_________________

recycling importance of the conservation of natural resources reduce, recycle, reuse waste products biology

  1. Do not degrade

  2. Degrades efficiently

  3. Degrades very slowly

  4. Remains unharmed

Show answer
Correct Option: A
Explanation:

  • Non-Biodegradable wastes are those that cannot break down or degrade for many years. These are waste that cannot change into manure and they pile up causing pollution. Burning these fuels causes more pollution in the environment. The non-biodegradable wastes become useful when they can be recycled.

So the correct option is 'Do not degrade'.

Which of the following materials are non-biodegradable?

biology waste products reduce, recycle, reuse importance of the conservation of natural resources recycling

  1. Plastic mugs

  2. Egg shell

  3. Leather belt

  4. Both A and C

Show answer
Correct Option: A
Explanation:

Egg shell and leather belt are obtained naturally from living organisms and are made of biodegradable components.

Plastic mugs are synthesized by humans in factors by making artificial polymers using chemicals which ultimately becomes non biodegradable. It remains as it is for thousands of years in the same condition.
Thus, the correct answer is 'Plastic mugs.'

Identify the inorganic impurity

biology waste products reduce, recycle, reuse importance of the conservation of natural resources recycling

  1. Urine

  2. Human faeces

  3. Phospahates

  4. Pesticides

Show answer
Correct Option: C
Explanation:

Urine, Human feces and pesticides consist or compounds made up of carbon and other organic constituents and accumulate as organic waste. While phosphates are the compounds considered as inorganic and they are the inorganic impurity in nature. 

Thus, the correct answer is 'Phosphates'.

Find incorrect statement for Non-biodegradable pollutants:

biology waste products reduce, recycle, reuse importance of the conservation of natural resources recycling

  1. The non-biodegradable pollutants are decomposed by microbes

  2. They are degraded slowly

  3. They are often harmful

  4. DDT, BHC, plastics, broken glass are examples of non-biodegradable pollutants

Show answer
Correct Option: A
Explanation:

Non-biodegradable wastes are those that cannot be decomposed or dissolved by microbes or any natural agents. They remain on earth for thousands of years without any degradation.

So, the correct answer is 'the non-biodegradable pollutants are  decomposed by microbes

Acid deposited in rain and snow is known as

biology waste products reduce, recycle, reuse importance of the conservation of natural resources recycling

  1. Wet Deposition

  2. Dry Deposition

  3. Acid Rain

  4. Rain Depolarization

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Correct Option: A

'volatile solids' represents

biology waste products reduce, recycle, reuse importance of the conservation of natural resources recycling

  1. Dissolved solids

  2. Organic Solids

  3. Colloidal Solids

  4. Suspended Solids

Show answer
Correct Option: B

DDT is a _____________ pollutant

biology waste products reduce, recycle, reuse importance of the conservation of natural resources recycling

  1. Bio degradable

  2. Non bio degradable

  3. Un-biodegradable

  4. Naturally degradable

Show answer
Correct Option: B