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A group of student researchers is joining in a science fair. The project is about the antibacterial activity of guava leaves extract. According to their study, the guava leaves’ extract showed large zone of inhibition against the bacteria.

Independent Variable:
Dependent Variable:


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Answer:

Independent variables: The number or amount of guava leaves used.

Dependent variables: The effect of guava left extract in preventing infection

Explanation:

The independent variable is the thing to be changed in the experiment or the the cause of something.

The dependent variable is the effect of what is changed and the thing to be observed.

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