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umka2103 [35]
3 years ago
15

What is a controlled variable in an experiment?

Biology
2 answers:
lukranit [14]3 years ago
6 0
A the factor that is purposely changed
Alik [6]3 years ago
5 0

Answer:

A factor that is purposely left the same.

Explanation:

A controlled variable should not be changed throughout an experiment or else it will affect the outcome of each individual trial.

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THIS ASSIGNMENT IS DUE IN 20 MINUTES HELP!!!!!! What causes the temperature to increase with height through the stratosphere and
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The temperature decreases in the mesosphere since there is no ozone and the amount of air is decreasing.

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3 years ago
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yawa3891 [41]

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B. The nucleus is damaged.

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4 0
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Acid rain has a greater effect on lakes without limestone because limestone is
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