Tag: importance of the conservation of natural resources

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Questions Related to importance of the conservation of natural resources

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

A non-biodegradable pollutant is

  1. Newsprint

  2. Green leaves

  3. DDT

  4. Cowdung
Reveal answer Fill a bubble to check yourself
C Correct answer
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'.

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

This is a nonbiodegradable pollutant  :

  1. Sewage

  2. Sulphur dioxide

  3. Oxides of nitrogen

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

Lead is a heavy metal that does not break down through biological processes in the environment. Sewage, sulfur dioxide, and nitrogen oxides can be processed or absorbed by natural systems, whereas lead persists as a toxic pollutant.

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

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

  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.
Reveal answer Fill a bubble to check yourself
A Correct answer
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.
Multiple choice biology waste products reduce, recycle, reuse importance of the conservation of natural resources recycling

The most harmful environmental pollutants are

  1. human organic wastes

  2. wastes from feedlots

  3. non-biodegradable chemicals

  4. natural nutrients present in excess
Reveal answer Fill a bubble to check yourself
C Correct answer
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'.

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

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

  1. True

  2. False
Reveal answer Fill a bubble to check yourself
A Correct answer
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'.
Multiple choice biology waste products reduce, recycle, reuse importance of the conservation of natural resources recycling

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

  1. Biomagnification

  2. Bioaccumulation

  3. Biodegradation

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

Bioaccumulation is the process by which substances, such as pesticides, build up in the tissues of an individual organism over time. Biomagnification refers to the increase in concentration of these substances as they move up the food chain.

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

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

  1. 1995

  2. 1998

  3. 1992

  4. 1996
Reveal answer Fill a bubble to check yourself
B Correct answer
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.