Tag: industrial pollution and degradation of environment

Questions Related to industrial pollution and degradation of environment

Which of the following is considered a type of pollution?

  1. Noise

  2. Radiation

  3. Soil pollution

  4. All of the above


Correct Option: D
Explanation:

There are five major types of pollution
1.air pollution
2.water pollution
3.soil pollution
4.radiation
5.noise

_______ Is any such constituent which causes pollution.

  1. Radiation

  2. Pollutant

  3. Particulate

  4. All of the above


Correct Option: B
Explanation:

Pollution is the addition of any such constituent to air,water or land which deteriorate the natural quity of the environment. And Pollutant is any such constituent which causes pollutant.

Air pollution can be

  1. Gaseous

  2. Particulate type

  3. Both A and B

  4. None of the above


Correct Option: C
Explanation:

The air pollution is basically of two types:
1) Gaseous pollution: harmful gases given out from a variety of sources.
2) Particulate pollution: particles such as those of dust, smoke, mining, stone drilling, wearing of rubber types of motor vehicles.

Which of the following causes pollution?

  1. Radiation

  2. Pollutant

  3. Particulate

  4. All of the above


Correct Option: B
Explanation:

Pollution is the addition of any such constituent to air, water or land which deteriorates the natural equality of the environment.Pollutant is any such constituent which causes pollution. It degrades the quality of the environment.

Radiation is the emission of high energy particle which may cause mutagenic changes in humans leading to several chronic diseases.
Particulate is the minute suspended particles present in the air.
So, the correct answer is option B.

Pollutants are _____

  1. Solids

  2. Liquids

  3. Gases

  4. All of the above


Correct Option: D
Explanation:

Pollutant is the addition of any such constituent to air,water or land which deteriorate the natural quality of the environment.

When do we consider environment to be polluted?

  1. When the beauty of environment changes

  2. When the composition of environment changes

  3. When the level of unwanted materials in the environment crosses the permissible limit

  4. None of the above


Correct Option: C
Explanation:

Environment is said to be contaminated when there is introduction of some unwanted contaminant in the natural environment. There are certain limitations to the presence of these contaminant upto to which it is considered to be safe. Increase in the level of these would be considered to be polluted.

Effect of pollution is first marked on

  1. Micro-organisms

  2. Green vegetation of an area

  3. Food crop

  4. None of the above


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 ?

  1. Volcanic eryption

  2. UV radiation

  3. Forest fire

  4. Mercury


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 ?

  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.


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.