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Tsync Tsync
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8 years ago
Large meteoroids are thought to collide with Earth:
A) never; only comets are thought to collide with Earth.
B) about once a century.
C) a few times in every million-year period.
D) once every billion years.
E) at least once a decade.
Textbook 
Astronomy Today

Astronomy Today


Edition: 8th
Authors:
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Minoring in physics
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RatatouilleRatatouille
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8 years ago
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Tsync Author
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#2
8 years ago
This astronomy class is killing me, thanks for chiming in and answering
Minoring in physics
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#3
8 years ago
Slight Smile
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