Question # 1

Ozone is beneficial for us as it absorbs.....................

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Infrared Radiations

Ultraviolet radiations

Chlorofluorocarbons

Air pollutants

Earth has natural systems.

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One

Two

Three

Four

How many percentage of sunlight is absorbed by atmosphere gases.

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12%

18%

24%

30%

Which one of the following is not air pollutant.

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CO₂

CO

NO₂

O₂

The major constituents of troposphere are:

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carbon dioxide and argon

nitrogen and oxygen

argon and oxygen

carbon dioxide and oxygen

Which one of the following gas has greater retaining capacity?

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O₂

N₂

CO

CO₂

Which one of the following is not air pollutants?

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N₂

CO

NO₂

O₂

A pollutant is a waste material that pollutes.

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Air

Water

Soil

All of them

A strange bitter smell noticed near photo copier machine is of.

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H₂S

SO₂

O₂

O₃

Which gas is in involved in ozone depletion?

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Nitrogen

CFC's

Chlorine

All of them

Depending upon temperature variation, atmosphere ins divided into how many regions?

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1

2

3

4

Atmospheric region found between 50-58 km from the earthis.

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Thermosphere

Stratosphere

Mesophere

Thermosphere

The region of ozone decomposition in stratosphere is.

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20 km

30 km

40 km

50 km

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