Organelles
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The variables in a study of a cause-and-effect relationship are called the independent and dependent variables. The independent variable is the cause. Its value is independent of other variables in your study. The dependent variable is the effect.
Answer:
individuals of the same species that live in the same area
Answer:
volcanic eruptions, earthquakes, and tsunamis
Explanation:
The answer is D. Schist because it is an igneous rock, it could be found in a volcano.