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By doing a dance on the hive
Answer:
Caroline Herschel
Explanation:
She was the first women to discover a comet and calculate its path.
Answer:
The independent variable are the vitamins .
The dependent variable are the rats.
Explanation:
The vitamins are the independent variable because they are are controllable. You can control how many vitamins the rats will be given.
The outermost layer of the Earth is called the crust.
