CBSE-NET (UGC) Environmental Science (Paper-II & Paper-III): Questions 230 - 234 of 385

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Question number: 230

» Introduction of Environmental Science » Ecosystem

Appeared in Year: 2015

MCQ▾

Question

Biological communities in a stream vary based on:

(I) Water velocity

(II) Allochthonous material

(III) Size of the particle on the stream bed

(IV) Depth of the stream

Choose the correct answer: (June)

Choices

Choice (4) Response

a.

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

b.

(I) and (II) only

c.

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

d.

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

Question number: 231

» Air » Monitoring and Control of Air Pollution

Appeared in Year: 2015

MCQ▾

Question

According to Gaussian Plume Model, the maximum ground level concentration (c) varies with height (H) of chimney: (June)

Choices

Choice (4) Response

a.

CH2

b.

CH32

c.

CH12

d.

C1H

Question number: 232

» Ecosystems » Energy Flows

Appeared in Year: 2015

MCQ▾

Question

The amount energy at one tropic level divided by the amount of energy at the trophic level immediately below it is termed as: - (June)

Choices

Choice (4) Response

a.

Consumption efficiency

b.

Production efficiency

c.

Trophic efficiency

d.

Assimilation efficiency

Question number: 233

» Energy Resources » Tidal Energy

Appeared in Year: 2015

MCQ▾

Question

An ocean wave has a height of 3 m and has time period of 10 sec. The power available for extraction from this wave in the units of kW per meter of the wave front is approximately: (June)

Choices

Choice (4) Response

a.

30

b.

45

c.

300

d.

90

Question number: 234

» Fundamentals of Environmental Chemistry » Acid Base Reaction

Appeared in Year: 2015

MCQ▾

Question

pH of 1 mM HCl is: (June)

Choices

Choice (4) Response

a.

1

b.

3

c.

2

d.

11

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