Tag: environment and conservation

Questions Related to environment and conservation

Effect of pollution is first marked on

business organisation and correspondence industrial pollution and degradation of environment sources of pollution environmental conservation environment and conservation

  1. Micro-organisms

  2. Green vegetation of an area

  3. Food crop

  4. None of the above

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Correct Option: B
Explanation:
Pollution is the addition of contaminants in the natural environment. The effect of pollution is first marked on the green vegetation of an area. Being the producers of energy, green vegetation absorbs air and water; also has direct contact with the soil. Thus, if any of these gets polluted, the green vegetation is first affected which is further passed through the food chain to next trophic level.
So the correct answer is option B.

Which of following is not a cause of natural pollution ?

business organisation and correspondence industrial pollution and degradation of environment sources of pollution environmental conservation environment and conservation

  1. Volcanic eryption

  2. UV radiation

  3. Forest fire

  4. Mercury

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Correct Option: D
Explanation:

Natural pollution comes from natural sources like release of methane by cattle and paddy fields, carbon dioxide from plants and animals, dust storms, nitrogen oxides, ozone, volcanic eruptions, emission of natural gas, sol erosion, ultraviolet rays,etc. Mercury is not a cause of natural pollution.

Which of the following statements is correct ?

business organisation and correspondence industrial pollution and degradation of environment sources of pollution environmental conservation environment and conservation

  1. Primary pollutants are more harmful than secondary pollutants.

  2. Primary pollutants and secondary pollutants are equally harmful.

  3. Secondary pollutants are more harmful than primary pollutants.

  4. DDT is a secondary pollutant.

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Correct Option: C
Explanation:

Primary pollutants persist in the form they are released in the environment. Secondary pollutants are formed by reaction amongst the primary pollutants. Secondary pollutant are more toxic than primary pollutants. DDT is a primary pollutant.

Fill in the blanks:
Benzopyrene is a/an

business organisation and correspondence industrial pollution and degradation of environment sources of pollution environmental conservation environment and conservation

  1. Effluent

  2. Carcinogen

  3. Both (A) and (B)

  4. None of them

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Correct Option: C

Which one of the following environmental pollutants has the problem of biomagnifications?

business organisation and correspondence industrial pollution and degradation of environment sources of pollution environmental conservation environment and conservation

  1. $SO _{2}$

  2. $NO _{3}$

  3. Hg fungicides

  4. $O _{3}$ and $CO _{2}$

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Correct Option: C

A pollutant is any substance, chemical or other factor that changes 

business organisation and correspondence industrial pollution and degradation of environment sources of pollution environmental conservation environment and conservation

  1. Natural geochemical cycles

  2. The natural balance of our environment

  3. The natural flora of our environment

  4. The natural wild life of our region

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Correct Option: B
Explanation:

The environment is our surrounding. This includes living and non-living things around us. The non-living components of the environment are land, water and air. The living components are plants and animals. All plants and animals adjust to the environment in which they are born and live. A change in any component of the environment may cause discomfort and affect normal life. Any unfavourable change or degradation in the environment is known as environmental pollution. Thus, the correct answer is option B.

Find the odd one out:

business organisation and correspondence industrial pollution and degradation of environment sources of pollution environmental conservation environment and conservation

  1. Plastic

  2. Paper

  3. Charcoal

  4. Water

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Correct Option: C
Explanation:

In the modern world, to save resources for the next generation it is very important to reuse the goods available. Plastic, paper and water are the easiest substances that could be reused rather than dumping them out.

Carbon mono oxide is a pollutant because

business organisation and correspondence industrial pollution and degradation of environment sources of pollution environmental conservation environment and conservation

  1. it reacts with $O _{2}$

  2. it inhibits glycolysis

  3. makes nervous system inactive

  4. reacts with haemoglobin

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Correct Option: D

Contamination of water with mercury causes which disease ?

business organisation and correspondence industrial pollution and degradation of environment sources of pollution environmental conservation environment and conservation

  1. Typhoid

  2. Minamata disease

  3. Syphilis

  4. Goiter

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Correct Option: B
Explanation:

The best known example of heavy metal pollution in the oceans took place when Japanese factory discharged a significant amount of mercury metal into Minamata Bay, contaminating the fish stocks there. By that time, many local people had eaten the fish and around 2000 were poisoned. Hundreds of people were left dead or disabled.

The toxic substance in ecosystem is called as ________.

business organisation and correspondence industrial pollution and degradation of environment sources of pollution environmental conservation environment and conservation

  1. Pollution

  2. Pollutant

  3. Imbalance

  4. None of the above

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Correct Option: B
Explanation:

Introduction of an undesired component in the natural ecosystem is called as pollution. The undesired component is called as pollutant.