NCERT Solutions for Class 6 Science Chapter 15 – Air Around Us

Page No 153: Question 1: What is the composition of air? ANSWER: Air is a mixture of 79% nitrogen, 20% oxygen, 1% carbon dioxide, water vapours and some other gases. Air also contains dust particles. Page No 153: Question 2: Which gas in the atmosphere is essential for respiration? ANSWER: Oxygen is essential for respiration. Page …

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