answr
Join / Login
Back

Important questions on Atmospheric Pollution

HARD

Snow blindness is cause due to

A

Ozone hole

B

Nuclear winter

C

Acid rain

D

Green house effect

View Answer
HARD

Depletion of ozone layer is due to _______.

A

Oxides of nitrogen

B

Oxides of carbon

C

Oxides of sulphur

D

None of the above

View Answer
HARD

The combination of nitrogen oxides and hydrocarbons in the presence of the sunlight causes

A

Global warming

B

Smog

C

Ozone hole in the atmosphere

D

Acid rain

View Answer
HARD

Which of the following is the uppermost layer of the atmosphere?

A

Stratosphere

B

Mesosphere

C

Ionosphere

D

Exosphere

View Answer
HARD

CFCs split up in stratosphere to release chlorine by the action of

A

UV - A

B

UV - B

C

UV - C

D

All of the above

View Answer
HARD

Chlorofluorocarbon releases ______ which is harmful to ozone.

A

Fluorine

B

Chlorine

C

Nitrogen peroxide

D

Sulphur dioxide

View Answer
HARD
Assertion

UV radiation cause photo dissociation of ozone into and O thus causing damage to stratospheric ozone layer.

Reason

Ozone hole is resulting in global warming and climatic change.

A

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion.

B

Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion.

C

Assertion is correct but Reason is incorrect.

D

Both Assertion and Reason are incorrect.

View Answer
HARD

Match the columns and find out the correct combination.

III
aDDTi.Co,
bPANii.Smog
cAcid rainiii.Biological magnification
dGlobal warmingiv.

A

a-iv, b-iii, c-ii, d-i

B

a-i, b-iii, c-ii, d-iv

C

a-ii, b-iii, c-iv, d-i

D

a-iii, b-ii, c-iv, d-i

E

a-iii, b-iv, c-i, d-ii

View Answer
HARD

Depletion of ozone layer published in scientific journals, in

A

1950s

B

1990s

C

1970s

D

1980s

View Answer

VIEW MORE

CHeatsheet
Cheatsheet