Air (CBSE-NET (UGC) Environmental Science (Paper-II & Paper-III)): Questions 1 - 4 of 20

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Question number: 1

» Air » Sources of Pollution

Appeared in Year: 2015

Match List-Ⅰ List-Ⅱ▾

Question

Match the Lists - 1 and - II. Identify the correct answer from the codes given below the Lists. (December)
List-Ⅰ (Causes) List-Ⅱ (Effects)

(A)

Phosphorous assimilation

(i)

Chronic obstructivepulmonary diseases

(B)

Water pollution

(ii)

Decomposition

(C)

Soil oranisms

(iii)

Decomposition

(D)

Air pollution

(iv)

Complexing agent

Choices

Choice (4) Response
  • (A)
  • (B)
  • (C)
  • (D)
a.
  • (iv)
  • (iii)
  • (iii)
  • (i)
b.
  • (iii)
  • (i)
  • (iv)
  • (ii)
c.
  • (iv)
  • (i)
  • (ii)
  • (iii)
d.
  • (iii)
  • (ii)
  • (i)
  • (iv)

Question number: 2

» Air » Effect of Pollutants

Appeared in Year: 2015

MCQ▾

Question

Which of the following adds to the carbon dioxide concentration in atmosphere?

(I) Volcanic action (II) Respiration

(III) Photosynthesis (1V) Decay of organic matter

Choices

Choice (4) Response
a.

(II) only

b.

(I), (II) and (IV) only

c.

(1), (II), (Ill) and (IV)

d.

(I) and (II) only

Question number: 3

» Air » Primary and Secondary Pollutants

Appeared in Year: 2015

MCQ▾

Question

Which of the following statement is incorrect? (December)

Choices

Choice (4) Response
a.

Chromium (VI) is highly toxic

b.

Methyl mercury is most toxic mercury species

c.

Arsenic (III) is more toxic than arsenic (V)

d.

Cadmium is a criteria pollutant

Question number: 4

» Air » Air Quality Standards

Appeared in Year: 2015

MCQ▾

Question

According to National Ambient Air Quality Standards in India, the permissible 24-hour average concentration of lead in ambient air of an industrial area is: (December)

Choices

Choice (4) Response
a.

4.0μg/m3

b.

1.0μg/m3

c.

3.03μg/m3

d.

2.0μg/m3

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