Question # 1

Infrared radiation emitted by the earth are absorbed by?

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CO₂,H₂O

N₂,O₂

CO₂,N₂

O₂,CO₂

The percentage of sun light absorbed by atmospheric gases is.

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2%

10%

18%

25%

Ozone depletion was first noticed is.

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1970's

1980's

1990's

1960's

Which one of the following gas has greater retaining capacity?

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O₂

N₂

CO

CO₂

The sphere just above the Earth's surface is.

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Mescosphere

Stratosphere

Thermosphere

Troposphere

Which is not a poisonous gas?

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Ozone

Chlorine

Carbon di oxide

All of them

Which gas is responsible in warming the atmosphere?

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Nitrogen

Hydrogen

Helium

Fluorine

Ozone id beneficial for us as it:

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absorbs infrared radiations

absorbs ultraviolet radiation

absorbs chlorofluorocarbons

absorbs air pollutants

Which gas is also known as life gas for plants.

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CO

CO₂

O₂

NO₂

Which gas protects the Earth's surface from ultraviolet radiations?

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CO₂

CO

N₂

O₃

The smell of photocopies machine is due to the presence of.

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Chlorine gas

Neon gas

Helium gas

Ozone gas.

Which gas is emitted due to volcanic eruption?

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CO₂

SO₃

NO₂

H₂

Ozone is beneficial for us as it

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Absorb infrared radiation.

Absorb Ultraviolet radiations.

Absorb Chlorofluorocarbons

Absorb Air pollulant

Which gas acts as a glass wall of a green house?

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Oxygen

Carbon dioxides

sulphur dioxide

Hydrogen

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