Which of the Following Accurately Describes ¹⁸O/¹⁶O Ratios of the Oceans

question 111

Multiple Choice

Which of the following accurately describes ¹⁸O/¹⁶O ratios of the oceans?

• A)The ¹⁸O/¹⁶O ratio in the ocean is low during the winter because temperatures are too low for ¹⁶O to evaporate.
• B)The ratio of oceanic ¹⁸O/¹⁶O in the late summer is high,because the most of the ¹⁶O has evaporated by then.
• C)During the winter,¹⁶O is high in the ocean; during warmer periods the isotope ratio is lower.
• D)Because ¹⁸O evaporates more readily than ¹⁶O,the oceans have a higher relative abundance of ¹⁶O during the summer.

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