Ques:Q: What type of shape does sodium chloride have? Choices: - round - trianguler - oblong - cubic A:

Ans:cubic
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Ques:Q: What increases the size of a population's gene pool? Choices: - mass extinction - microbes - natural selection - mutations A:

Ans:mutations
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Ques:Q: When an action and reaction occur, what is transferred from one object to the other, yet in combination it remains the same? Choices: - matter - force - energy - momentum A:

Ans:momentum
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Ques:Q: What is the term for a test to see if a scientific explanation is right or wrong? Choices: - invention - hypothesis - generation - experiment A:

Ans:
experiment
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