rai8577 rai8577

31-03-2021
Biology

contestada

The percentage of oxygen in the air is 21.0%, but the percentage in air exhaled while breathing is
A. 21.0%
B. 18.0%
C. 16.0%
D. 14.0%
E. none of the above

Respuesta :

Аноним Аноним

31-03-2021

Answer:

its c

Explanation:

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aramirez12706 aramirez12706

31-03-2021

Answer:

e

Explanation:

Answer Link

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