CBSE-NET (UGC) Environmental Science (Paper-II & Paper-III): Questions 364 - 369 of 376

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Question number: 364

» Introduction of Environmental Science » Structure and Composition of Atmosphere

Appeared in Year: 2009

MCQ▾

Question

One of the important mechanism of aerosol formation is: (June)

Choices

Choice (4) Response

a.

Nucleation from vapour molecules

b.

Breakdown of nimbus clouds

c.

Cracking of ionosphere

d.

Precipitation in local ponds

Question number: 365

» Water Chemistry » Chemistry of Water

Appeared in Year: 2009

MCQ▾

Question

In pure water, the generation of each one of the ions H+andOH at standard temperature and pressure:

Choices

Choice (4) Response

a.

1014ml

b.

0.5×1014ml

c.

107ml

d.

2×107ml

Question number: 366

» Statistical Analysis » Basic Elements and Tools

Appeared in Year: 2009

MCQ▾

Question

The value of the integral 2dxxx21 is: (June Paper 2)

Choices

Choice (4) Response

a.

Zero

b.

π8

c.

π2

d.

π4

Question number: 367

» Introduction of Environmental Science » Physico-Chemical and Biological Factors in Environment

Appeared in Year: 2009

MCQ▾

Question

A cyclist starting from stand still accelerates at 0.4 msec2 for 10 seconds.

(a) What velocity does it reach and

(b) the distance it covers: (June)

Choices

Choice (4) Response

a.

(a) 2msec1 (b) 20m

b.

(a) 4msec1 (b) 20m

c.

(a) 4msec1 (b) 10m

d.

(a) 2msec1 (b) 10m

Question number: 368

» Statistical Analysis » Measurement and Distribution of Attributes

Appeared in Year: 2009

MCQ▾

Question

The derivatives of ‘f’ at x=0, where f(x)=x2 x is: (June)

Choices

Choice (4) Response

a.

0

b.

2

c.

1

d.

3

Question number: 369

» Soil » Fungicides and Weedicides

Appeared in Year: 2009

MCQ▾

Question

Which of the following can be used for biological destruction of undesired fungal mass? (June)

Choices

Choice (4) Response

a.

Bacteriophages

b.

Mycophages

c.

HIV

d.

TMV

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