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olga nikolaevna [1]
2 years ago
15

Which of the following is a trace gas?

Biology
2 answers:
Burka [1]2 years ago
6 0

Answer:

O hydrogen

Explanation:

hope it helps, please mark as brainliest please

Kay [80]2 years ago
6 0

Answer:

ozone

Explanation:

Out of the 1% of trace gases it makes up .01% of them.

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