NCERT Solutions for Class 6 Science Chapter 15
Important NCERT Questions
Class 6th Chapter 15 Air Around Us
NCERT Books for Session 2022-2023
CBSE Board and State Board
Questions No: 2
Which gas in the atmosphere is essential for respiration?
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Oxygen gas in the atmosphere is essential for respiration.
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Oxygen (O2) is the gas in the atmosphere essential for respiration. It is crucial for the process of breathing and the functioning of most living organisms, including humans and animals. During respiration, oxygen is taken in by the body and utilized by cells to produce energy through the metabolic process.