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Explain two reasons why having an oxygen-rich atmosphere is important for pife on Earth?​
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Explain two reasons why having an oxygen-rich atmosphere is important for pife on Earth?​

User Rclakmal
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Answer:

First, oxygen makes up the ozone layer, blocking harmful radiation from the sun, and all living things need oxygen to survive!

Step-by-step explanation:

User Adam Tanner
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Answer:

Humans need oxygen to breathe.

Majority of animals that humans depend on for food need oxygen to breathe.

User Al Grant
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