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A scientist conducts an experiment to test the effects of light on earthworm activity. Which is a variable in this experiment?

light intensity

soil conditions

temperature

earthworm activity

Verified Answer :

In executing an experiment, it is important to know the variables you are trying to manipulate and measure into. Pinpointing these variables which include the independent and dependent variables are of significance to every testing study.

earthworm activity
and 
light intensity

23chadholt

Answer:

earthworm activity

Explanation:

The variable in this scenario is the activity of the earthworms.

light intensity is not the variable they are indicating as the light is just what is being used to conduct the experiment upon the earthworms.

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