Composition and Structure of the Atmosphere Class 7 Geography Question alongwith Answers

Composition and Structure of the Atmosphere Class 7 Geography

Question and Answers:Scroll Down👇

EXERCISES A.

Fill in the blanks.

1. 78% per cent of the atmosphere is made of nitrogen.

2. Along with carbon dioxide and methane, water vapour is a potent greenhouse gas. 3. The rate at which the temperature drops in the troposphere is 1°C per 165 metres.

4. The thermosphere is the layer of the atmosphere that help in radio transmission.

5. The upper part of the thermosphere is called the ionosphere.

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