In a study of the effects of different types of soil on plant growth, which of these would be the variable?
A) soil type
B) plant type
C) amount of sunlight
D) amount of water

Question

Quizplus · Accepted Answer

The variable being studied is the effect of different types of soil on plant growth. Therefore, the type of soil is the variable being manipulated and observed, making it the independent variable. The plant type, amount of sunlight, and amount of water are potential factors that could affect plant growth, but they are not being specifically tested for their effects in this study.

In a Study of the Effects of Different Types of Soil