Question

in an experiment for science class, six pepper plants grown in individual containers are separated into two groups. one group is placed in a room that gets sunlight, and the other group is placed in a dark room. all of the plants receive the same amount of water daily. after three weeks, the plants are observed. why were all the plants in the experiment pepper plants? a plant type was a tested variable b plant type was not a tested variable c each plant received a different amount of water d each plant received the same amount of sunlight

Explanation:

In a scientific experiment, to accurately test the effect of a variable (in this case, sunlight exposure), other factors should be kept constant. Since the focus is on sunlight and not plant - type, all plants are pepper plants to ensure plant - type isn't a confounding variable. Plant type was not a tested variable.

Answer:

B. plant type was not a tested variable