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Alex73 [517]
3 years ago
15

Bats,birds,and people evolution. Help

Chemistry
1 answer:
Troyanec [42]3 years ago
6 0

Answer:

i dont understand ... whats the question?

Explanation:

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Answer: Options (a) and (d) are the correct answer.

Explanation:

A catalyst is the substance which helps in increasing the rate of reaction.

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3 years ago
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hope this helps
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