Question # 1

Which metal present in acid rain affect the aquatic life by clogging fish gills?

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Lead

Chromium

Aluminium

Mercury

Which gas is not present in atmosphere?

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Nitrogen

Oxygen

Helium

Carbon dioxide

The range of temperature in burning solid waste burning in incinerators is.

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650 ^oC - 1000 ^oC

650^oC - 11000^oC

1000^oC - 2000^oC

650^oC - 1000^oC

5000^oC - 1000^oC

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

The layer above troposphere extend upto 50 kilometers called.

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Mesosphere

Hydrosphere

Stratosphere

Thermosphere

Normally rain water is weakly acidic because of.

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SO₃ gas.

CO₂gas.

SO₂gas.

NO₂gas.

Cause of global warming is :

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CO₂ gas

SO₂gas

NO₂gas

O₂gas

Which one of the following is not air pollutants?

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N₂

CO

NO₂

O₂

Catalytic converters convert.

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CO to CO₂

N₂ to NO

CO₂ to CO

N₂to NO₂

Which pollutant is responsible for changing weather?

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Air pollutant

Water pollutant

Soil pollutant

All of them

In the bacterial decay, the compound of which element are emitted.

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Sulphur

Carbon

Nitrogen

All of them

Ultraviolet radiations can causes.

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Hepatitis

Asthma

Skin cancer

Night blindness

Cause of global warming is:

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CO₂gas

SO₂gas

NO₂gas

O₂gas

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