Introduction of Environmental Science-Structure and Composition of Atmosphere (CBSE-NET (UGC) Environmental Science (Paper-II & Paper-III)): Questions 1 - 6 of 8

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Question number: 1

» Introduction of Environmental Science » Structure and Composition of Atmosphere

Appeared in Year: 2015

Assertion-Reason▾

Assertion (Ꭺ)

Radon is an inert gas and it is radioactive

Reason (Ꭱ)

all inert gases are radioactive

Choices

Choice (4) Response

a.

Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ

b.

Both Ꭺ and Ꭱ are true but Ꭱ is NOT the correct explanation of Ꭺ

c.

Ꭺ is true but Ꭱ is false

d.

Both Ꭺ and Ꭱ are false

Question number: 2

» Introduction of Environmental Science » Structure and Composition of Atmosphere

Appeared in Year: 2015

MCQ▾

Question

The lowest temperature is observed in which layer of the atmosphere (December)

Choices

Choice (4) Response

a.

Troposphere

b.

Stratosphere

c.

Thermosphere

d.

Mesosphere

Question number: 3

» Introduction of Environmental Science » Structure and Composition of Atmosphere

Appeared in Year: 2015

MCQ▾

Question

The source of Stratospheric NOx is: (December)

Choices

Choice (4) Response

a.

Tropospheric NO2

b.

Tropospheric N2O

c.

Tropospheric NO

d.

Atmospheric N2

Question number: 4

» Introduction of Environmental Science » Structure and Composition of Atmosphere

Appeared in Year: 2014

MCQ▾

Question

An active, adaptive control process, which is able to maintain the overall balance, is known as (December)

Choices

Choice (4) Response

a.

Gaia Hypothesis

b.

Miller Hypothesis

c.

Kepler’s Law

d.

Bohr’s Hypothesis

Question number: 5

» Introduction of Environmental Science » Structure and Composition of Atmosphere

Appeared in Year: 2014

MCQ▾

Question

The scale length of pressure variations in atmosphere in vertical direction is about (December)

Choices

Choice (4) Response

a.

7 km

b.

3 km

c.

12 km

d.

4.8 km

Question number: 6

» Introduction of Environmental Science » Structure and Composition of Atmosphere

Appeared in Year: 2015

MCQ▾

Question

The balance between photosynthesis and photorespiration is related to:

(I) The ratio of O2andCO2 in the atmosphere

(II) Temperature

(III) Kranz anatomy

(IV) The ratio of CO2andH2O

Choose the correct answer: (June)

Choices

Choice (4) Response

a.

(I) and (II) only

b.

(I), (II) and (III) only

c.

(II), (III) and (IV) only

d.

(I), (II), (III) and (IV)

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