A student is studying the effects of sunlight on tomato plants. She chooses 6 tomato plants, making sure that each of them receives the same amount of water and fertilizer each day. She gives one plant 0 hours of sunlight each day, with the other 5 plants receiving 1, 3, 5, 7, and 9 hours of sunlight. At the end of the experiment, she has people try a tomato from each plant and has them rank the fruits by their sweetness. She also records the total number of leaves produced on each tomato plant.

Question

Which variable was controlled in the experiment?

(1 point)
Responses

sweetness of fruit
sweetness of fruit

amount of water

Answer 1

amount of fertilizer

amount of sunlight

number of leaves

Answer 2

choose only one

Answer 3

amount of sunlight

Answer 4

choose from the options provided

Answer 5

I apologize for the confusion. The variable that was controlled in the experiment was the amount of sunlight.