Question # 1

The percentage by volume of nitrogen in dry gas is.

Choose an answer

78.09%

20.94%

0.93%

0.03%

Fossil fuel means.

Choose an answer

Coal

Petroleum

Natural gas

All of them

How many percentage of sunlight is absorbed by atmosphere gases.

Choose an answer

12%

18%

24%

30%

The stratosphere layer is at height above the earth's surface.

Choose an answer

0-12 km

12-50 km

50-85 km

65-120 km

Major portion of ozone layer is foun in.

Choose an answer

Troposphere

Stratosphere

Mesosphere

Thermosphere

The gas use by plants to perform photosynthesis.

Choose an answer

O₂

CO₂

N₂

CO

Normally rain water is weakly acidic because of.

Choose an answer

SO₃ gas.

CO₂gas.

SO₂gas.

NO₂gas.

About 99% of atmospheric mass lies in.

Choose an answer

35 km

30 km

15 km

16 km

Which one of these pollutants are not found in car exhaust fumes?

Choose an answer

CO₂

O₃

NO₂

SO₂

Forest fires and burning of wood emit.

Choose an answer

CO₂

NO₂

SO₂

Cl₂

Which gas is not present in atmosphere?

Choose an answer

Nitrogen

Oxygen

Helium

Carbon dioxide

A group of gases that maintains temperature of atmosphere is.

Choose an answer

Carbon dioxide and water vapours

Nitrogen and carbon dioxide

Thermosphere

Troposphere

Global warming is because of.

Choose an answer

Absorption of infrared radiation emitted by earth surface.

Absorption of infrared radiation coming from sun.

Absorption of infrared Ultraviolet coming from the sun.

Emission of ultraviolet radiation from the earth's surface.

More Classes

Other Links

Chemistry 10th Class English Medium Unit 14 Online Test MCQs With Answers

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer