(01.01 MC)

2 answers:

5 0

The dependent variable is plant height.

The dependent variable (plant height) is the property that changes as a result something the scientist does.

The independent variable is the property that the scientist changes systematically (the amount of CO_2) to see its effect.

The number of plants and the types of plants are uncontrolled variables. They may or may not affect the heights of the plants.

3 0

Answer: It is the number of plants

Explanation:

The scientist does not care about the height of the plants but the quantity of them.

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