Topics: Vocabulary
What is an ordered arrangement of rock layers that is based on the relative ages of the rocks and in which the oldest rocks are at the bottom
A. core
B. geologic column
C. hole
D. sink hole
Select your answer:
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Verb To Be › ViewChoose the correct option.
A. They are kid.
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The number of volunteers at the hospital _____________ in recent years.
A. decrease
B. decreases
C. has decreased
D. have decreased