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The air we inhale contains less than 1% carbon dioxide. Approximately what percentage of carbon dioxide is there in the air we exhale? A) 1% B) 4% C) 16% D 20%
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The air we inhale contains less than 1% carbon dioxide.

Approximately what percentage of carbon dioxide is there in the air we
exhale?
A) 1%
B) 4%
C) 16%
D 20%

User Birk
by
8.1k points

1 Answer

3 votes

Answer:

B.4%

Step-by-step explanation:

User Mcoav
by
8.4k points
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