NCERT Important Questions Class 9 Science biology Chapter 14
Important NCERT Extra Questions
Chapter 14 Natural Resources
NCERT Book Extra Questions for Session 2022-2023
CBSE Board and UP Board Others state Board
How is Earth’s atmosphere different from that of Venus and Mars?
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Earth’s atmosphere is different from that of Venus and Mars. It contains only 0.03% carbon dioxide in addition to nitrogen, oxygen and water vapour. This is due to consistent presence of life on Earth (Gaia hypothesis). In comparison to Earth’s atmosphere, atmosphere of Venus and Mars is rich in CO₂ (having 95 to 97% CO₂) and lifeless.