The earth's continents drift because
A) they are actually floating on the surface of the sea.
B) different areas of land alternately rise above and sink below the oceans.
C) the plates of the earth's crust interact with the molten rock below.
D) gravitation forces acting on the earth change over time.
Correct Answer:
Verified
Q10: The earth was formed about
A)1 million years
Q11: At the time the earth was formed,the
Q12: The heavy elements that now make up
Q13: Most of the history of life on
Q14: The extinction that wiped out the dinosaurs
Q15: How old is the first evidence of
Q16: The formation of the "supercontinent" of Pangea
A)was
Q18: The sudden appearance of organisms with shells
Q19: Sexual reproduction probably evolved
A)to increase genetic variation.
B)to
Q20: The mass extinction of 65 million years
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