Limestone Reefs and Salt Deposits Are Important Rocks in the Reconstruction

question 10

Multiple Choice

Limestone reefs and salt deposits are important rocks in the reconstruction of Earth history because they ________.

• A)can be used to infer the ancient climate of the Earth;they are deposited in environments that are restricted to warm climate
• B)automatically provide age information;all such deposits occurred between 200 and 400 million years ago
• C)are deposited in warm climates today,but there is good reason to think that they were deposited in cold climates millions of years ago
• D)pinpoint the locations of old subduction zones

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