Question #6422559Single Choice

Biology

Question

A researcher is studying the effect of different pH levels on the growth of algae in a pond. She sets up three tanks with water at different pH levels: Tank A has a pH of 5, Tank B has a pH of 7, and Tank C has a pH of 9. She ensures that all tanks receive the same amount of light, the same type of algae, and the same temperature.

Why is it important to keep the amount of light constant in this experiment?

Options

To ensure that the pH levels are accurate

To test how light affects algae growth

To isolate the effect of pH on algae growth

To increase the algae growth in all tanks

Answer & Analysis

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