The underlined word "course" in paragraph 2 means________.

The underlined word "course" in paragraph 2 means________.A.a place for a race

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We can conclude from this passage that avalanches________.

We can conclude from this passage that avalanches________.A.are common everywhe

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More has been learned since.1945 about the chemical changes

More has been learned since.1945 about the chemical changes in the body than in

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The writer explains the boiling water by using________.

The writer explains the boiling water by using________.A.myths B.humor C.facts

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A crater lake is at the tip of a________.

A crater lake is at the tip of a________.A.mountain B.ridge C.island D.volcano

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