Ecology and Environment-Environmental Issues (KVPY Stream-SA (Class 11) Biology): Questions 6 - 14 of 16

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Question number: 6

» Ecology and Environment » Environmental Issues » Air Pollution and Its Control

MCQ▾

Question

Which is normally not an air pollutant -

Choices

Choice (4) Response

a.

CO

b.

SO2

c.

Hydrocarbons

d.

CO2

Question number: 7

» Ecology and Environment » Environmental Issues » Water Pollution and Its Control

MCQ▾

Question

What is B. O. D. : -

Choices

Choice (4) Response

a.

The amount of O2 utilized by organisms in water

b.

The amount of O2 utilized by microorganisms for decomposition

c.

The total amount of O2 present in water

d.

All of the above

Question number: 8

» Ecology and Environment » Environmental Issues » Air Pollution and Its Control

MCQ▾

Question

What is found in photochemical smog?

Choices

Choice (4) Response

a.

NO2

b.

CO

c.

Ozone

d.

Both a. and c. are correct

Question number: 9

» Ecology and Environment » Environmental Issues » Air Pollution and Its Control

MCQ▾

Question

Cotton dust is an important pollutant in –

Choices

Choice (4) Response

a.

Delhi

b.

Madras

c.

Ahmedabad

d.

Calcutta

Question number: 10

» Ecology and Environment » Environmental Issues » Air Pollution and Its Control

MCQ▾

Question

The most harmful air pollutant produced by automobiles is -

Choices

Choice (4) Response

a.

CO

b.

SO2

c.

HNO2

d.

NO

Question number: 11

» Ecology and Environment » Environmental Issues » Ozone Depletion

Appeared in Year: 2002

MCQ▾

Question

Ozone layer of upper atmosphere is being destroyed by: [MPPMT]

Choices

Choice (4) Response

a.

Sulphurdioxide

b.

Carbon dioxide

c.

Smog

d.

Chlorofluorocarbon

Question number: 12

» Ecology and Environment » Environmental Issues » Agrochemicals and Their Effects

MCQ▾

Question

What is the intensity of sound in normal conversation?

Choices

Choice (4) Response

a.

120 - 150 decibel

b.

10 - 20 decibel

c.

30 - 60 decibel

d.

70 - 90 decibel

Question number: 13

» Ecology and Environment » Environmental Issues » Air Pollution and Its Control

MCQ▾

Question

Greenhouse effect mainly due to

Choices

Choice (4) Response

a.

SO2

b.

O2

c.

CO2

d.

CO

Question number: 14

» Ecology and Environment » Environmental Issues » Water Pollution and Its Control

MCQ▾

Question

Bloom occurs in -

Choices

Choice (4) Response

a.

Fast flowing river

b.

Rain water

c.

Eutrophic lake

d.

Oligotrophic lake

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