Question # 1

About 99% atmosphere's lies within:

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30 kilometre

35 kilometre

15kilometre

11 kilometre

Which one of the following is not a greenhouse Effect?

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Increasing atmosphere temperature.

Increasing food chains

increasing flood risks

Increasing sea-level

The envelope of different gases around the earth is called.

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Atmosphere

Brosphere

Lithosphere

Hydrosphere

Forest fires and burning of wood emit.

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CO₂

NO₂

SO₂

Cl₂

Which gas is in involved in ozone depletion?

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Nitrogen

CFC's

Chlorine

All of them

Which gas saves the surface of earth from ultra violet radiation?

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CO₂

CO

N₂

O₃

Which factor determines the severity of a pollutant?

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Chemical nature

concentration

Persistence

All of them

At which region all weather occurs?

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Troposphere

Stratosphere

Mesosphere

Thermosphere

The earth atmosphere is getting hotter because of :

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SO₂

O₃

CO₂

CO

75% atmosphere mass lies in how many kilometers.

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11 km

30 km

50 km

85 km

Ozone id beneficial for us as it:

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absorbs infrared radiations

absorbs ultraviolet radiation

absorbs chlorofluorocarbons

absorbs air pollutants

Which is not a poisonous gas?

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Ozone

Chlorine

Carbon di oxide

All of them

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