A mineral makes up a rock
A sample is a random, unbiased selection out of a larger group. An independent variable is one that is changed as to see how it will affect the dependent variable in an experiment.
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Answer:
type 1 diabetes and cancer
Explanation:
All the others are contagious diseases that you can contract, but type 1 diabetes and cancer can be caused by genetics. The others are all things that you can usually recover from while cancer and diabetes are usually conditions that cannot be escaped sadly.
Answer:
C
Explanation:
A scientist who studies objects in the sky, including planets, galaxies, blackholes, and stars