Ques:Q: What is the measure of the force of gravity pulling down on an object called? Choices: - factor - mass - volume - weight A:

Ans:weight
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Ques:Q: What are waves that pass a fixed point in a given amount of time called? Choices: - tendency frequency - combination frequency - radio frequency - wave frequency A:

Ans:wave frequency
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Ques:Q: Catalysts can greatly increase the rates of chemical what? Choices: - photosynthesis - decay - effects - reactions A:

Ans:reactions
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Ques:Q: What are the two types of vascular tissue? Choices: - ectoderm and phloem - phloem and phlegm - cytoplasm and ectoplasm - xylem and phloem A:

Ans:
xylem and phloem
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