Answer:
A.) a substance with ph between 0 and 7.
Explanation:
as acid has pH value between 0 to 7.
The value because it could be worth a lot or a little
It might have mold On The surface
Answer:
I would say b
<em>I might be wrong but I hope i helped! ^^</em>
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Do you mean "why"?
They are the main source for all living organisms because they provide energy, relatively short term, for any creature that consumes them.
