In an experiment showing how sunlight affects plant height, which is the independent variable?

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Multiple Choice

In an experiment showing how sunlight affects plant height, which is the independent variable?

Explanation:
Sunlight is the factor you deliberately vary to see how it changes plant height. That makes it the independent variable. The height of the plant is what you measure to see the effect, so it’s the dependent variable. Soil moisture and air temperature would typically be kept constant or monitored so they don’t drive the results, rather than being the variable being tested in this setup.

Sunlight is the factor you deliberately vary to see how it changes plant height. That makes it the independent variable. The height of the plant is what you measure to see the effect, so it’s the dependent variable. Soil moisture and air temperature would typically be kept constant or monitored so they don’t drive the results, rather than being the variable being tested in this setup.

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