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Question
At about what frequency is Earth struck by a meteorite large enough (about 10 km in diameter) to cause mass extinctions?A) about every 1 million years
B) about every 10 million years
C) about every 100 million years
D) This has yet to occur on Earth.
Answer
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Related questions
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Heat energy is measured in units of
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B) joules.
C) calories.
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B) decreases by 100/273.
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D) increases by 100/273.
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Which of these is the smallest?
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A) increases.
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Which law of thermodynamics addresses the direction of heat flow?
A) First law
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Q:
At some point between Earth and the Moon, the forces due to gravity on a space traveler would be the same when this point is
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Newton discovered
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