CBSE Class 7 - Our Environment - Ch 4- Air (NCERT Solution)

 Air


Atmosphere Composition
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Class 7 - Geography - NCERT Chapter 4 Solution

Q1: What is atmosphere?

Answer: The thick blanket of air (mixture of gases) around the earth is called atmosphere.


Q2: Which two gases make the bulk of the atmosphere?

Answer: Nitrogen and Oxygen


Q3: Which gas creates green house effect in the atmosphere?