Question

A scientist, who wants to study the effects of nitrogen on wheat plant growth, sets up an experiment with 4 groups of wheat plants: group A gets 20 pounds per acre, group B gets 40 pounds per acre, group C gets 60 pounds per acre, and group D gets 0 pounds per acre. What is the dependent variable? Select one: C A. the weight of the plants at the end of the experiment B. the amount of sunlight the plants were exposed to C. the temperature the plants were grown in D. the amount of nitrogen given to the plants x ©

Answer 1

The weight of the plants at the end of the experiment.

Step-by-step explanation:

Since the experiment was set up to study the growth of the wheat plants, weight is a sign of growth. So at the end of the experiment, the weight of the plant will be compared to the amount of nitrogen added.

If a graph is to be plotted, the amount of nitrogen (independent variable) will be on the x-axis and the weight of the plants (dependent variable) will be on the y-axis.

The amount of sunlight and temperature are not included because the question does not say that they are parameters in the experiment.