Ques:Q: What kind of weathering changes the size of a mineral or rock but does not change its chemical composition? Choices: - molecular weathering - chemical reaction - radiation - mechanical weathering A:

Ans:mechanical weathering
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Ques:Q: How many types of mechanical waves are there? Choices: - five - nine - one - three A:

Ans:three
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Ques:Q: Which theory helps predict future events in weather? Choices: - expected change theory - future weather theory - carbon change theory - climate change theory A:

Ans:climate change theory
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Ques:Q: What tissue system has neither dermal nor vascular tissues? Choices: - external tissue system - work tissue system - internal tissue system - ground tissue system A:

Ans:
ground tissue system
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