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3 years ago

15

A scientist performs a controlled experiment. this means that select one:

2 answers:

musickatia [10]3 years ago

7 0

Answer: d. One experiment is performed, but the scientist control the variable.

Explanation:

In the controlled experiment the independent variable is changed in an orderly manner so that accurate changes can be observed on the dependent variable. Also in this a controlled group is also used for comparision with the changes in other variables.

andrezito [222]3 years ago

5 0

D. one experiment is performed but the scientists control the variables

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