Question

In an experiment, the hypothesis is If the wavelength of the light shining on a plant is shortened, the rate of photosynthesis is slowed down. If this experiment is performed, the independent variable _____.

will be the wavelength of the light
will be the plant on which the light is shining
will be the rate of photosynthesis
cannot be determined

Answer 1

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Answer 2

The independent variable is the condition you change in order to observe changes in the outcome of some event. The hypothesis here is that the rate of photosynthesis should change if there is a change in the wavelength of the incoming light.

Connect the dots...