Question

SC.5.N.1.4

13 Scientists include controls in their experiments.
Why is a control important?
A It helps scientists share results.
B It helps scientists form their first
hypothesis.
© It helps scientists record their repeated
observations.
0 It helps scientists compare their results to a
standard.

Answer 1

I think it’s D

Step-by-step explanation:

Controls allow us to see what’s normal so we can determine what is different in an experiment