CBSE-NET (Based on NTA-UGC) Environmental Science (Paper-II): Questions 344 - 349 of 385

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Question number: 344

» Environmental Awareness » Desertification and Control

Appeared in Year: 2011

MCQ▾

Question

About what percentage of earth’s dry lands are deserts? (December)

Choices

Choice (4) Response

a.

23 – 26%

b.

43 – 53%

c.

10 – 20%

d.

33 – 36%

Question number: 345

» Energy Resources » Global Warming

Appeared in Year: 2011

MCQ▾

Question

Which of the following gases has the maximum global warming potential (GWP) lifetime? – (December)

Choices

Choice (4) Response

a.

Carbon-dioxide

b.

Methane

c.

Nitrous oxide

d.

Water vapour

Question number: 346

» Statistical Analysis » Tests of Hypothesis and Significance

Appeared in Year: 2011

MCQ▾

Question

To test whether there is a significant difference between the means of two sets of observations; one employs the following statistical technique: (December)

Choices

Choice (4) Response

a.

t-test

b.

F-test

c.

χ2 test (chi square test)

d.

Regression

Question number: 347

» Basics of Environmental Geosciences » Mineral Resources and Environment » Minerals and Population

Appeared in Year: 2011

MCQ▾

Question

As we go down the discontinuous Bowen’s reaction series (Olivine – Pyroxene – Amphibole – Biotite) the Na, K and Al ratio- (December)

Choices

Choice (4) Response

a.

Increases

b.

Decreases

c.

Constant

d.

All of the above

Question number: 348

» Water Chemistry » Chemistry of Water

Appeared in Year: 2009

MCQ▾

Question

Following initiative under International efforts made to have household eco-friendly refrigerators: - (December)

Choices

Choice (4) Response

a.

Basal Convention

b.

CITES

c.

Montreal Protocol

d.

Kyoto Protocol

Question number: 349

» Statistical Analysis » Measurement and Distribution of Attributes

Appeared in Year: 2009

MCQ▾

Question

Stoke’s Law of Settling Velocity is represented by – (December)

Choices

Choice (4) Response

a.

b.

c.

d.

f Page
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