ashleyb0921 ashleyb0921

14-09-2021
Biology

contestada

In a scientific
experiment, how
many variables
should be changed
during the
experiment?
A. only one
B. about 3 or 4
C. a dozen or more
D. as many as possible

Respuesta :

seanycleve seanycleve

14-09-2021

Answer:

B: About 3 or 4

Explanation:

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