NCERT Class 6th Science Chapter 11 Air Around Us Question Answers
𝗤𝗨𝗜𝗭𝗘𝗧 NCERT Class 6th Science Chapter 11 Air Around Us Question Answers 1. What is the composition of air? Air is a mixture of several gases and components. The major components of air are: Nitrogen: Makes up about 78% of the air. Oxygen: Comprises around 21% of the air. Carbon Dioxide: Present in small quantities, about 0.03% to 0.04%. Water Vapour: Varies depending on location and weather conditions. Other Gases: Includes argon, helium, neon, and others, which together make up less than 1%. Dust and Smoke: Fine particles of dust and smoke are also present in the air, especially in polluted areas. 2. Which gas in the atmosphere is essential for respiration? Oxygen is the gas in the atmosphere that is essential for respiration. All living organisms, including humans and animals, require oxygen to breathe and to carry out cellular respiration, a process that releases energy from food. 3. How will you prove that air supports burning? To prove that air supports burning, you ...
