Question # 1

What percentage of nitrogen and oxygen is in the atmosphere.

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69%

79%

9%

89%

In the troposphere (lowest layer), the temperature decreases form 17°C to;

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-58°C

-93°C

-61°C

-49°C

75% atmosphere mass lies in how many kilometers.

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11 km

30 km

50 km

85 km

About 99% of atmospheric mass lies in.

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35 km

30 km

15 km

16 km

Ozone is an allotropic form of

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Carbon

Oxygen

Sulphur

Phosphorous

Higher concentration of CO causes.

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Fatique

Headache

Both of them

None of them

Atmosphere is divided into;

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3 regions

4 regions

5 regions

6 regions

99% of atmosphere consists of .

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N₂and H₂

N₂and O₂

N₂and CO₂

O₂and CO₂

Which pollutant is not found in car exhaust gases?

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CO

O₃

NO₂

SO₃

Mesosphere has a temperature range.

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17 ^oC - 58^oC

58^oC - 2^oC

2^oC - 93^oC

- 93^oC

Which of the following is a poisonous gas.

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Oxygen

Ozone

Nitrogen

Carbon dioxide

Which gas is in involved in ozone depletion?

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Nitrogen

CFC's

Chlorine

All of them

The percentage of sun light absorbed by atmospheric gases is.

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2%

10%

18%

25%

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