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Environment & EcologyEasyAsked in: CTET · Paper II Maths & Science, 21 Jan 2024

Which of the following gases are responsible for acid rain? (a) Nitrogen (b) Oxygen (c) Ozone (d) Sulphur dioxide (e) Nitric oxide

  1. A.(d) and (e)
  2. B.(a) and (b)
  3. C.(b) and (c)
  4. D.(c) and (d)

Correct answer

A. (d) and (e)

Explanation

The correct answer is A, (d) and (e). Sulphur dioxide and nitric oxide are the gases behind acid rain. When coal, petrol and diesel are burnt in power plants, factories and vehicles, they release sulphur dioxide and oxides of nitrogen such as nitric oxide. These gases dissolve in the water droplets of clouds and form sulphuric acid and nitric acid, which then come down with the rain. Acid rain harms crops, soil, lakes and forests, and it eats into buildings and monuments. NCERT's Class 8 science book describes how acid rain corrodes the white marble of the Taj Mahal at Agra, a damage called marble cancer, with industries around Agra and the Mathura refinery among the sources. B is wrong because nitrogen and oxygen are the main, harmless gases of the air. C is wrong because oxygen and ozone do not form the acids that fall as acid rain. D is wrong because it pairs sulphur dioxide with ozone, which is not a cause of acid rain. Exam tip: acid rain, sulphur dioxide and nitrogen oxides; marble cancer, the Taj Mahal.

Practice Questions

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Q2.Environment & EcologyAsked in: CDS · CDS-I 2019, GKMedium

Which one of the following statements about the National Green Tribunal is not correct?

  1. A.It was set up in the year 2010.
  2. B.It is involved in effective and expeditious disposal of cases relating to environmental protection and conservation of forests.
  3. C.It may consider giving relief and compensation for damages to persons and property.
  4. D.It is bound by the procedures laid down under the Code of Civil Procedure, 1908.
Show answer
Correct answer: D. It is bound by the procedures laid down under the Code of Civil Procedure, 1908.

The National Green Tribunal is not bound by the Code of Civil Procedure; it is guided by the principles of natural justice.

Q3.Environment & EcologyAsked in: CDS · CDS-I 2018, GKHard

Consider the following statements about National Wildlife Action Plan (NWAP) of India for 2017-2031:

1. This is the Third National Wildlife Action Plan.

2. The NWAP is unique as this is the first time India has recognized the concerns relating to climate change impact on wildlife.

3. The NWAP has ten components.

Which of the statements given above is/are correct?

  1. A.1 only
  2. B.1 and 2 only
  3. C.2 and 3 only
  4. D.1, 2 and 3
Show answer
Correct answer: B. 1 and 2 only

The plan for 2017-2031 is India's third National Wildlife Action Plan and the first to deal with the impact of climate change on wildlife, but it has five components, not ten.