Question # 1

The region in which ozone layere depletes is called.

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Ozone hole

Black hole

Both of them

None of them

Which one of the following is not air pollutants?

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N₂

CO

NO₂

O₂

Which pollutant is not found in car exhaust gases?

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CO

O₃

NO₂

SO₃

pH of acid rain is:

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7-5

6-7

1-2

4-5

At the height 880120 km from earth's surface is.

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Troposphere

Mesosphere

Stratosphere

Thermosphere

The formula of ozone is.

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O₂

O₃

O

CO

Which one of these pollutants are not found in car exhaust fumes?

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CO₂

O₃

NO₂

SO₂

Almost all air crafts fly in which reion?

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Troposphere

Stratosphere

Mesosphere

Thermosphere

Which one of the following is not an air pollutants?

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Nitrogen

Carbon dioxide

Nitrogen oxide

Ozone

Ozone id beneficial for us as it:

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absorbs infrared radiations

absorbs ultraviolet radiation

absorbs chlorofluorocarbons

absorbs air pollutants

Percentage of nitrogen in atmosphere is:

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20.94%

78.09%

0.93%

0.03%

Which of the following is a poisonous gas.

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Oxygen

Ozone

Nitrogen

Carbon dioxide

Ozone depletion was first noticed is.

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1970's

1980's

1990's

1960's

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