00:01
The question that is given over here, it says that terry wants to determine the effect of different colors of light on the growth of plants.
00:19
He hypothesized the plants will grow the tallest in green light because plants are green.
00:24
He sets up four groups of bean plants with 25 plants in a group.
00:29
Each of the groups is subjected to different light source, sunlight, blue light, green light or red light.
00:40
Then we have to write what is the control group in this study.
00:54
Group of answer choices are given.
00:56
The right answer for this question is here the control group is option a, that is the group of plants that received blue light.
01:17
So, as already said in the experiment, each group was eliminated with different type of light.
01:24
But all other variables like the durations of light.
01:30
And the amount of water and fertilizers...