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To test how fertilizer affects aquatic animals, a student prepared four identical containers with water fleas. The student then added different amounts of fertilizer mixed with distilled water to three of the containers and distilled water alone to one of the containers. Which factor is being tested in this experiment?

A. Age of water fleas
B. Amount of distilled water
C. Amount of fertilizer
D. Size of habitat

Respuesta :

joebucannon
It would be C. because the student is using different amounts of fertilizer in each container
Bistai

The right option is; C. Amount of fertilizer

Amount of fertilizer is the factor that is being tested in the experiment.  

In this experiment, different amounts of fertilizer that was mixed with distilled water was added to three of the containers. The different amount of the applied fertilizer is expected to have different effect and to produce different results. This makes the amount of fertilizer to be the factor that is being tested in the experiment. The container to which only distilled water is added will serve as the control in the experiment.

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