Question

how are oxygen and carbon dioxide essential for life form (in chapter atmosphere

Answer 1

Oxygen is inhailed by all living being
Carbon dioxide is used by all plants to produce food in the presence of sunlight. It also keeps the earth warm.

Answer 2

Hey Buddy,
The carbon dioxide and oxygen cycle is critical to life on Earth. Humans, and most other organisms, need oxygen to survive. ... That is why it is so important to help someone who cannot breathe by providing them with oxygen. Plants and other organisms that perform photosynthesis rely on animals for carbon dioxide.

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