Can someone please help me out here? Thanks in advance!

asked Aug 28, 2021 32.6k views

1 vote

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1 vote

Answer:

c !

Step-by-step explanation:

SolaceBeforeDawn answered Aug 30, 2021

4.7k points

3 votes

Answer:

Oxygen and carbon dioxide

Step-by-step explanation:

Those are the two gases that are needed for us to live and are mostly present in the atmosphere and our bodies

Matthew P answered Sep 4, 2021

5.4k points

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