A scientist plants two rows 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 height of the corn growth over the course of 5 months. What is a constant in this experiment?

Water and light intensity

Explanation:

In an experiment, the component parts of the experiment usually includes a variable which is of two types- independent variable, dependent variable; a constant and a control.

An independent variable is the part of the experiment the person changes or controls.

The dependent variable is the part of the experiment that changes due to changes being made to the independent variable.

The control group is a part of the experiment in which all variable factors have been kept constant and which is used as a standard to compare with other trials of the experiment.

A constant is the part or factor which do not change and is kept constant during the experiment.

In the experiment conducted by the scientist, the two rows of plant receives the same amount of water and light intensity, therefore, they are both the constants.

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