CBSE-NET (UGC) Environmental Science (Paper-II & Paper-III): Questions 33 - 38 of 376

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Question number: 33

» Introduction of Environmental Science » Structure and Composition of Lithosphere

Appeared in Year: 2015

MCQ▾

Question

Water entrapped at the time of formation of the sedimentary rocks is called: (June)

Choices

Choice (4) Response
a.

Meteoric water

b.

Connate water

c.

Groundwater

d.

Juvenile water

Question number: 34

» Environmental Awareness » Ozone Depletion

Appeared in Year: 2015

MCQ▾

Question

Atmospheric life times of CFCs is typically in the range: (December)

Choices

Choice (4) Response
a.

50 - 102 years

b.

152 – 210years

c.

140 - 200 years

d.

200 - 400 years

Question number: 35

» Water Chemistry » Concept of DO, BOD, COD

Appeared in Year: 2015

MCQ▾

Question

BOD of the effluents discharged on land for irrigation should not exceed: (June)

Choices

Choice (4) Response
a.

100 mg/L

b.

60 mg/I.

c.

30 mg/L

d.

300 mg/I.

Question number: 36

» Energy Resources » Hydroelectric Power

Appeared in Year: 2015

MCQ▾

Question

Which of the following countries produce highest amount of hydropower? (June)

Choices

Choice (4) Response
a.

Australia

b.

Canada

c.

Italy

d.

India

Question number: 37

» Introduction of Environmental Science » Geographical Classification and Zones

Appeared in Year: 2015

MCQ▾

Question

Maximum density of detritivorus microorganisms in pond ecosystem are present in (June)

Choices

Choice (4) Response
a.

Photic zone

b.

Littoral zone

c.

Benthic zone

d.

Limnetic zone

Question number: 38

» Ecosystems » Community Ecology

Appeared in Year: 2015

MCQ▾

Question

Speciation means - (December)

Choices

Choice (4) Response
a.

Characterization of different species

b.

One species splits into two or more different species naturally

c.

Artificial process of extinction of different species

d.

Natural process of extinction of different species

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