Question

James took two pea plants, placing one in a dark closet and the other on a sunny window sill. Both are located in air conditioned rooms. He then measured the growth of the pea plants after a week. In this experiment sunlight is a(n) ____.

A. independent variable

B. Constant

C. Dependent variable

D. Control

Answer 1

independent variable

Step-by-step explanation:

this is the correct answer

Answer 2

C. Dependent variable without the sunlight he could not preform his experiment because if he where to put both in the sunlight the sunlight would then become control but it could never become independent