Alvarez and others proposed a hypothesis that dinosaur extinction occurred because __.
A) they sickened and died because of a cross-species epidemic
B) the continents were flooded with seawater and they drowned
C) all their eggs were eaten by birds and mammals
D) the climate changed as the Ice Age began
E) one or more asteroids impacted Earth, resulting in environmental change
Correct Answer:
Verified
Q35: The Earth is approximately _ years old.
A)
Q36: The principle of _ states that an
Q37: The _ Era began with the appearance
Q38: By the principle of _, the surface
Q39: The _ Era is the Age of
Q41: Fossils are common in _.
A) all rock
Q42: Radiocarbon dating is useful in dating an
Q43: The _ includes most of geologic time
Q44: The truncation of bedding where sedimentary rock
Q45: _ is the spontaneous nuclear change of
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