A researcher found shark fossils on top of a mountain. This evidence suggests which of the following about this region?
A. It was once below a waterfall.
B. It was once part of a riverbed.
C. It was once covered by an ocean.
D. It was once near a freshwater lake.

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Answers

2014-10-21T19:51:57+08:00
Of course it's letter C!!!!!!
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