Tag: importance of the conservation of natural resources

Questions Related to importance of the conservation of natural resources

A non-biodegradable pollutant is

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

  1. Newsprint

  2. Green leaves

  3. DDT

  4. Cowdung

Show answer
Correct Option: C
Explanation:

A non-biodegradable pollutant is the one that could not be broken down or decomposed by the decomposing fungi and bacteria present in the water and soil. DDT is an organochlorinated compound used as an insecticide that is chemically stable. It does not dissolve in water rather it mixes with the adipose tissue in the living organisms and persists in the food chain, causing biomagnification. In the soil, it destroys the microbial fauna. 

Newsprint paper, green leaves and cow dung are all organic biomass that can be degraded easily.
Hence, the correct answer is 'DDT'.

This is a nonbiodegradable pollutant  :

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

  1. Sewage

  2. Sulphur dioxide

  3. Oxides of nitrogen

  4. Lead vapour

Show answer
Correct Option: D

What is the correct match about biodegradable and non-biodegradable substances? 

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

  1. Biodegradable- broken down into simpler substances by biological processes.

    Non-biodegradable- cannot be broken down into simpler ones by biological processes.

  2. Biodegradable- cannot be broken down into simpler ones by biological processes. 

    Non-biodegradable- broken down into simpler substances by biological processes.

  3. Both A and B.

  4. None of the above.

Show answer
Correct Option: A
Explanation:
Substances that are broken down into simpler substances by biological processes are said to be biodegradable. For examples, wood, paper. Substances that cannot be broken down into simpler ones by biological processes are said to be non-biodegradable. For example, plastic, DDT.

Animal dung is ______ waste.

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

  1. biodegradable

  2. non-biodegradable

  3. hazardous

  4. toxic

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Correct Option: A

The most harmful environmental pollutants are

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

  1. human organic wastes

  2. wastes from feedlots

  3. non-biodegradable chemicals

  4. natural nutrients present in excess

Show answer
Correct Option: C
Explanation:

biodegradable wastes are those wastes which easily gets degraded into simpler molecules over a period of time by microorganisms. Biodegradable wastes include human organic wastes, nutrients wastes etc.whereas nonbiodegradable substances accumulate in the environment and causes pollution. These wastes also sometimes accumulate in an organism when the feed upon them and through biomagnification reaches the higher concentration in higher groups.

so. the correct answer is 'non-biodegradable chemicals'.

Non-biodegradable articles are the ones which cannot be decomposed.

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

  1. True

  2. False

Show answer
Correct Option: A
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. Such substances include plastic, polythene, metals, paints, polystyrene etc. These substances are also harmful for nature. They can be decomposed only by chemical agents.
Hence, the statement given in question is incorrect as non biodegradable articles cannot be decomposed or degraded.
So, the correct answer is 'True'.

The phenomenon of accumulation of non-biodegradable pesticides in human beings

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

  1. Biomagnification

  2. Bioaccumulation

  3. Biodegradation

  4. Bioremediation

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Correct Option: B

What causes rise in nutrient level of water?

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

  1. Deforestation

  2. Biodegradation

  3. Eutrophication

  4. Composition

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Correct Option: B

Biomedical waste (management and handling) rules, was established in the year _____

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

  1. 1995

  2. 1998

  3. 1992

  4. 1996

Show answer
Correct Option: B
Explanation:

Biomedical waste, if not handled properly is a potent source of diseases like AIDS, TB, Hepatitis and other bacterial disease causing serious threat to human health. Therefore this waste needs prime attention for its safe and proper disposal. So the Government of India published Biomedical waste (Management and Handling) Rules on July 27, 1998.

Non-biodegradable wastes are ____ in nature. 

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

  1. Decomposable

  2. Non-decomposable

  3. Both

  4. None

Show answer
Correct Option: B
Explanation:

Non biodegradable wastes are non-decomposable in nature. They are not degraded by microbes. They pile up and accumulate in nature.