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In an experiment testing the effect of fertilizer on plant growth, what is the independent variable?

AThe growth of the plants.

BThe type of plant used.

CThe amount of fertilizer applied to the plants.

DThe amount of sunlight the plants receive.

Answer:

C. The amount of fertilizer applied to the plants.

Read Explanation:

  • The amount of fertilizer is the factor that the experimenter is deliberately changing to see its effect, making it the independent variable.


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