What type of information can scientists derive from observing deep-ocean cores?
A) how much light penetrates the ocean
B) information about historical changes in Earth's climate
C) historical changes in tidal cycles
D) direct measurements of salinity over time
Correct Answer:
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Q39: Distinguish between active and passive continental margins.
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A) are a type of
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A) terrigenous
Q49: Which of the following is a major
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