Deep sea trenches are formed by
A) volcanoes.
B) subduction.
C) erosion.
D) undersea currents.
E) deep sea sink holes.
Correct Answer:
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Q32: Boundaries between eras of geological time
A) were
Q33: Which of the following statements is INCORRECT?
A)
Q34: The oldest known supercontinent is
A) Gondwana.
B) Rodinia.
C)
Q35: The oldest eukaryotes from fossil records
A) were
Q36: Stratigraphy is
A) the study of stratosphere.
B) a
Q38: The largest mass extinction in the earth's
Q39: Descendants of a small rodent-type animal have
Q40: A region that includes northern fir forests
Q41: The body of a mammal falls into
Q42: How should a silicified fossil be exposed
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