Asked by Hayden

Ten plants are grown in equal amounts of sunlight with equal amounts of water and varying amounts of fertilizer. Sunlight, water, and fertilizer are
a) experiments b) systems c) variables d) controls

D

Answers

Answered by Damon
fertilizer is variable. It says that.
the others are controls
Answered by Hayden
It's asking what sunlight, water and fertilizer are
Answered by Damon
I told you
Answered by DrBob222
I agree with Damon; however, since neither c nor d can be correct, I think the answer must be b. The three together make a system.
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