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2 votes
It would be impossible to perform a controlled experiment on which of the following objects?

A. A distant planet
B. Plants in your house
C. A rabbit
D. The soil on Earth

User Jiayi Hu
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7.2k points

2 Answers

5 votes
A. Is the correct answer, I did the test
User Monirul Islam
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6.9k points
3 votes
A. A distant planet
User IMack
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