Question

James took two pea plants, placing one in a dark closet and the other on a sunny windowsill. Both are located in air-conditioned rooms. He then measured the growth of the pea plants after a week. Which of the following best describes the purpose of this experiment?

To determine the effect of air conditioning on plant growth

To determine the effect of lack of water on plant growth

To determine the effect of sunlight on plant growth

To determine the effect of enclosed spaces on plant growth

Answer 1

This procedure will demonstrate the effect of sunlight on plant growth. If that wasn't the purpose that James had in mind, then he picked the wrong experiment.

Answer 2

I should assume the answer would be C, to determine the affects of sunlight on plant growth. In the above paragraph, everything else in the experiment was the same, and the only variable was the amount of sunlight reaching each plant. Hope this helped!