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Tamiku [17]
3 years ago
7

Helppp please pleaseeee

Chemistry
1 answer:
boyakko [2]3 years ago
3 0

Answer:

D

Explanation:

The answer will be D because as we can deduct from the hypothesis, he will try to control the amount of food he gives the rats in order to see if in fact the fue of the mouse will be shinier

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