3. What is the number of variables that should be allowed to change in a
well-designed, controlled experiment?
a. I only
c. none
b. 2 or more
d. dependent on the type of experiment
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3. What is the number of variables that should be allowed to change in a
well-designed, controlled experiment?
a. I only
c. none
b. 2 or more
d. dependent on the type of experiment
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Answer:
D.
Explanation:
KASI NASA KLASENG EXPERIMENT PO YAN.
SANA MAKATULONG