Question # 1

The pH of water containing CO₂ is

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4-6

5.6-6

6-7

7-8

Which gas is in involved in ozone depletion?

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Nitrogen

CFC's

Chlorine

All of them

Which is not a part of flue gas?

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Furans

Dioxins

HCl

H₂SO₄

The earth atmosphere is getting hotter because of :

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SO₂

O₃

CO₂

CO

The formula of ozone is.

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O₂

O₃

O

CO

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 process by which atmospheric nitrogen is turned into nitrates in the soil is called.

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Nitration

Fixing

Oxidation

Reduction

Thermosphere lies beyond.

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Stratosphere

Troposphere

Mesosphere

Biosphere

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

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CO₂

CO

N₂

O₃

Which is the major effect of global warming?

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Increase in temperature.

Rise in sea level

Melting of glaciers

All of them

Infrared radiations emitted by the Earth are absorbed by.

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CO₂ and H₂O

N₂ and O₂

CO₂and N₂

O₂and CO₂

Which is not an air pollutant?

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CO₂

CO

SO₂

NH₃

Global warming causes rising of the sea level. The cause of global warming is.

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CO₂ gas.

SO₂gas.

NO₂gases.

O₃gas.

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