1-The process by which scientists gain knowledge based on observations and repet

Question

1-The process by which scientists gain knowledge based on observations and repetition of results is called_____?

2-The _________________ is the cycling of solid earth materials from one form to another.

3-The process by which scientists gain knowledge based on observations and repetition of results is called_____?

4-__________________________ diagrams assist demographers in looking at a one time snap shot of population distribution within a selected population.

5-An ____________________ caused a mass extinction approximately 65 million years ago.

Explanation / Answer

1) hypothesis testing

2) Rock cycle

3) hypothesis testing

4)Population pyramid

5) Asteroids

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