Ques:Q: What property of warm air causes it to rise above cold air? Choices: - greater pressure - greater density - higher temperature - lower density A:

Ans:lower density
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Ques:Q: What tides occur during the new moon and full moon? Choices: - autumn - high - bottom - spring A:

Ans:spring
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Ques:Q: What type of plate boundaries produce huge mountain ranges in the ocean basin? Choices: - coherent - parallel - tractional - divergent A:

Ans:divergent
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Ques:Q: What occurs when groups from the same species stop mating because of something other than physical or geographic separation? Choices: - extinction - complementary speciation - invasive speciation - sympatric speciation A:

Ans:
sympatric speciation
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