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Physics, 18.09.2021 22:00 skateyo2553

A group of students is setting up a test to see whether earthworms, like those shown in the photo, pref er rough or
smooth surfaces.
Which type of investigation is the group doing?
A. Descriptive
B. Controlled
C. Experimental
D. Comparative


A group of students is setting up a test to see whether earthworms, like those shown in the photo

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