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SOVA2 [1]
3 years ago
11

A student is useing a terrarium like the one shown here to study the cycling of oxygen which observation would be the best evide

nce of oxygen cycling
Biology
2 answers:
Gwar [14]3 years ago
6 0

Answer:

The observation of studying the composition of the oxygen and the other chemical that is getting cycled.

Explanation:

If the student tests their hypothesis and collects the data.

arsen [322]3 years ago
3 0

Answer:

Also healthy animals

Explanation:

AP3X

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