[ Vocabulary ]
What is a fossil known to have lived in a particular geologic age that can be used to date the rock layer in which it is found?
A. hypothesis
B. index fossil
C. jellyfish fossil
D. hippopotamus fossil
Select your answer:
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Grammar and Vocabulary › View________ kind of movies do you like?
A. How
B. What
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I have two tickets for the concert. One is for me, and _______ is for my friend.
A. The other
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