Discussion
Consider the following statements about coupling between ocean and atmosphere.
1. The atmosphere drives the surface ocean through wind stress.
2. The ocean influences the atmosphere through heat and moisture supply.
3. The coupling runs in one direction only.
Answer: B
Correct answer: 1 and 2 only
Statements 1 and 2 describe the two directions of the coupling: the atmosphere drives the surface ocean by wind stress, and the ocean feeds the atmosphere heat and moisture. Statement 3 denies the second of those. The coupling is two-way, and El Nino is the clearest demonstration - weakened trades warm the eastern Pacific, and that warming further weakens the trades.
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