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HURRY ANSWER PLZZ

How did he test his hypothesis?
a. He placed food in two jars, covering one jar and leaving the other uncovered.
b. He placed food in two jars and left both jars uncovered.
c. He placed food in two jars and covered both jars.
d. He put food in one jar and no food in a second jar.

User Pringles
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1 Answer

9 votes

Answer:

a

Step-by-step explanation:

User Harryscholes
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