NCERT Geography - AIR - Class 7 MCQ Chapter 4

1. _________ and oxygen are two gases which make up the bulk of the atmosphere.

Carbon Dioxide
Nitrogen
Carbon Monoxide
Hydrogen

2. Is global warming a serious issue in today’s world?

Yes
No
Not Really
Maybe

3. This layer is the most important layer of the atmosphere. Its average height is 13 km. The air we breathe exists here. What is it?

Exosphere
Mesosphere
Troposphere
Stratosphere

4. Above the Troposphere lies the _____________. It extends up to a height of 50 km. This layer is almost free from clouds and associated weather phenomenon, making conditions most ideal for flying aeroplanes.

Mesosphere
Exosphere
Stratosphere
Thermosphere

5. This is the third layer of the atmosphere. It lies above the stratosphere. It extends up to the height of 80 km. What is it?

Exosphere
Mesosphere
Troposphere
Stratosphere

6. The _________ of the atmosphere changes not only between day and night but also from season to season.

temperature
shape
taste
Weather

7. ____________ is the incoming solar energy intercepted by the earth.

Sunlight
Air pressure
Insolation
Energy

8. The trade winds, westerlies and easterlies are the _________ winds. These blow constantly throughout the year in a particular direction

Local Winds
Seasonal Winds
Permanent Winds
Monsoon Winds

9. Moisture in the air at any time, is known as _________.

Snow
humidity
Rain
Water Vapours

10. Precipitation(any kind of weather condition where something's falling from the sky) that comes down to the earth in liquid form is called _________.

Snow
Rain
Water Vapours
Acid

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