Question # 1

Which is not an air pollutant?

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CO₂

CO

SO₂

NH₃

Mesosphere has a temperature range.

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17 ^oC - 58^oC

58^oC - 2^oC

2^oC - 93^oC

- 93^oC

The region of ozone decomposition in stratosphere is.

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20 km

30 km

40 km

50 km

Which one of the following gas has greater retaining capacity?

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O₂

N₂

CO

CO₂

Normally rain water is weakly acidic because of.

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SO₃ gas.

CO₂gas.

SO₂gas.

NO₂gas.

Which gas is produce by the electrical lightening of air.

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NO

SO₂

SO₃

CO₂

Which pollutant is responsible for changing weather?

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Air pollutant

Water pollutant

Soil pollutant

All of them

Fossil fuel means.

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Coal

Petroleum

Natural gas

All of them

The pH of water containing CO₂ is

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4-6

5.6-6

6-7

7-8

Which of the following is a poisonous gas.

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Oxygen

Ozone

Nitrogen

Carbon dioxide

Which one of the following is not an air pollutants?

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Nitrogen

Carbon dioxide

Nitrogen oxide

Ozone

By the increase in the concentration of CO₂ in air.

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Decrease in heat energy

Increase in heat energy.

Heat energy remains same

None of them

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