CBSE-NET (UGC) Environmental Science (Paper-II & Paper-III): Questions 94 - 100 of 376

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Question number: 94

» Solid Waste and Management » Waste Minimization Technologies

Appeared in Year: 2011

MCQ▾

Question

The optimal pH for Methane production ranges between (June NET Paper 2)

Choices

Choice (4) Response

a.

5 to 5.6

b.

8 to 9.5

c.

7 to 7.2

d.

2.3 to 4.5

Question number: 95

» Basics of Environmental Geosciences » Water Resources and Environment » Origin and Composition of Seawater

Appeared in Year: 2011

MCQ▾

Question

Which of the following options is correct for concentration of elements in seawater? (June NET Paper 2)

Choices

Choice (4) Response

a.

Ca>Na>Mg

b.

Mg>Na>Ca

c.

CO3>SO4>C

d.

Na>Mg>Ca

Question number: 96

» Toxic Chemicals in Environment » Arsenic, Cadmium, Lead, Mercury, Ozone and PAN Pesticides

Appeared in Year: 2014

MCQ▾

Question

Which form of As is most toxic? (December)

Choices

Choice (4) Response

a.

As+2

b.

As+3

c.

As+6

d.

As+4

Question number: 97

» Energy Resources » Fossil Fuels » Coal

Appeared in Year: 2014

MCQ▾

Question

Which of the following types of coal has highest water content? (December)

Choices

Choice (4) Response

a.

Subbituminous coal

b.

Anthracite

c.

Lignite

d.

Bituminous coal

Question number: 98

» Environmental Awareness » Waste Disposal, Recycling and Power Generation

Appeared in Year: 2014

MCQ▾

Question

Which is the cleanest fuel for power generation? (December)

Choices

Choice (4) Response

a.

Hydrogen

b.

Coal

c.

Water

d.

Uranium

Question number: 99

» Water » Physico - Chemical and Bacteriological Sampling and Water Quality Analysis

Appeared in Year: 2011

MCQ▾

Question

The instrument used for determination of transparency of water is (June NET Paper 2)

Choices

Choice (4) Response

a.

Conductivity Bridge

b.

Sechhi disc

c.

Spectrophotometer

d.

Ekman dredge

Question number: 100

» Introduction of Environmental Science » Natural Resources and Conservation

Appeared in Year: 2014

MCQ▾

Question

The part of an actual resource, which can be developed profitably in the future, is- (December)

Choices

Choice (4) Response

a.

Reserved resources

b.

Potential resources

c.

Non-renewable resources

d.

Stock resources

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