Question # 1

Just above the Earth's surface is

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Mesosphere

Stratosphere

Theremosphere

Troposphere

Which pollutant is not found in car exhaust gases?

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CO

O₃

NO₂

SO₃

Acid rain affects the aquatic life by clogging fish gills because of:

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Lead metal

Chromium metal

Mercury metal

Aluminium metal

The stratosphere layer is at height above the earth's surface.

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0-12 km

12-50 km

50-85 km

65-120 km

Cause of global warming is:

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CO₂gas

SO₂gas

NO₂gas

O₂gas

Almost all air crafts fly in which reion?

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Troposphere

Stratosphere

Mesosphere

Thermosphere

The recombination of O and O₂ in mid stratosphere is an

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Exothermic reaction

Endothermic reaction

Heat absorbing process

None of these

How many percentage of sunlight is absorbed by atmosphere gases.

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12%

18%

24%

30%

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

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1

2

3

4

Percentage of nitrogen in atmosphere is:

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20.94%

78.09%

0.93%

0.03%

Ultraviolet radiations can causes.

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Hepatitis

Asthma

Skin cancer

Night blindness

Which gas is produce by the electrical lightening of air.

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NO

SO₂

SO₃

CO₂

The solid particle deposit on the filter paper during filtratin is called.

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Precipitates

Residue

Crystals

All of them

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