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Pavel [41]
3 years ago
15

Which of these is an abiotic factor of an aquarium ecosystem?

Biology
1 answer:
Levart [38]3 years ago
8 0
So abiotic means nonliving, so the only abiotic option is B. the gravel on the bottom of the aquarium.
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Option-A

Explanation:

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tia_tia [17]
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Hope this helps!
7 0
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