Carlo is wondering what causes plants to grow at different rates. Carlo’s hypothesis is “Plants will grow more when the day is longer.” What would be the difference between the test group and the control group in this experiment?

A.type of soil

B.type of plants

C.exposure to sunlight

D.method for measuring the growth

Question

Carlo is wondering what causes plants to grow at different rates. Carlo’s hypothesis is “Plants will grow more when the day is longer.” What would be the difference between the test group and the control group in this experiment?

A.type of soil

B.type of plants

C.exposure to sunlight

D.method for measuring the growth

aaronq · Answer

"...grow more when the day is longer." -> exposure to sunlight

sandra_ · Answer

c- exposure to sunlight