Question

A scientist wants to determine the effect of fertilizer on plant growth. She plants two rows of corn for experimentation. She puts fertilizer on row 1 but does not put fertilizer on row 2. Both rows receive the same amount of water and light intensity. She checks the growth of the corn over the course of 5 months and measures the height of the plants in centimeters. Row 1 increased in height by 28.1 cm. Row 2 increased in height by 13.4 cm.

What should the scientist conclude from this experiment?

A Fertilizer has no effect on the corn’s growth

B The reason for Row 1’s increase in height cannot be determined

C Row 2 didn’t grow as high because it needed more light

D Fertilizer helps increase corn’s height

Answer 1

Correct answer is option D.

Step-by-step explanation:

As we know when we are doing experiments we have a group or groups where we will be testing our treatment and one that will have the same conditions but without treatment, so we can compare groups, the present case is no exception, the control group is row 2 and the test subject row 1, there is difference between rows, to be sure that the fertilizer has an effect, we could do a statistical test, however, the preliminary results show a difference, so we can say that the correct answer is option D.