Your textbook does not have a direct section titled What is Air Made Up Of?, but in the chapter Blow Hot, Blow Cold (Page 142 onwards) , the concept of air and its presence is explained.
So, based on NCERT EVS syllabus and your PDF content, here are 10 One-Word Answer Type Questions from the topic What is Air Made Up Of? with answers and explanations immediately after each question:
Topic: What is Air Made Up Of?
1. Question:
What gas in air is essential for breathing?
Answer: Oxygen
Explanation: Oxygen is needed by living beings to breathe.
2. Question:
Which gas in air is used by plants to make food?
Answer: Carbon dioxide
Explanation: Plants use carbon dioxide during photosynthesis.
3. Question:
Which gas is the major part of air?
Answer: Nitrogen
Explanation: Nitrogen makes up the largest portion of air.
4. Question:
What is the gaseous state of water in air called?
Answer: Vapour
Explanation: Water vapour is present in air as moisture.
5. Question:
What is the mixture of gases around the Earth called?
Answer: Air
Explanation: Air is a mixture of several gases like nitrogen, oxygen, and carbon dioxide.
6. Question:
Which gas in air does not support burning?
Answer: Carbon dioxide
Explanation: Carbon dioxide does not help in burning and is used to extinguish fire.
7. Question:
What do plants release into the air during the day?
Answer: Oxygen
Explanation: Plants release oxygen during photosynthesis.
8. Question:
Which gas is present in the highest amount in air?
Answer: Nitrogen
Explanation: Nitrogen makes up about 78% of the air.
9. Question:
What is the name of tiny particles like dust in air?
Answer: Dust
Explanation: Air contains dust particles along with gases.
10. Question:
What is present in air that makes clothes dry?
Answer: Vapour
Explanation: Water vapour in the air helps in drying clothes by evaporation.
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