The bodies of our solar system began forming about______ billion years ago from an enormous cloud of minute rocky fragments and gases.
A) 5
B) 8
C) 4
D) 2
Correct Answer:
Verified
Q79: Birds evolved from_.
A) gymnosperms
B) apatosaurus
C) tree- climbing
Q80: Examine the words and/or phrases below and
Q81: The salinity of the oceans is _.
A)
Q82: The supercontinent of Pangaea formed during the
Q83: Earth's original atmosphere, several billion years ago,
Q85: Due to differentiation, the lighter, gaseous materials
Q86: Most _rocks are devoid of fossils; consequently
Q87: During the early Paleozoic era, the continent
Q88: When Earth's primitive surface cooled below water's
Q89: Fossil fuels are especially abundant in _rocks.
A)
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