I. Negative Rossby waves would cease to be generated in the eastern Pacific.
II. The sea level in the eastern Pacific would fall.
III. The surface water in the eastern Pacific would again be cooled by being mixed with deep water.
I only
II only
I and II only
I and III only
I, II, and III
26. Which of the following, if true, would most seriously undermine the validity of the model of El Nino that is presented in the passage?
During some years El Nino extends significantly farther along the coasts of Ecuador and Peru than during other years.
During periods of unusually cool temperatures along the eastern Pacific, an El Nino is much colder than normal.
The normal upwelling of cold water in the eastern Pacific depends much more on the local characteristics of the ocean than on atmospheric conditions.
The variations in the time it takes Rossby waves to cross the Pacific depend on the power of the winds that the waves encounter.
The western boundary of the Pacific basin is so irregular that it impedes most coastal Kelvin waves from heading eastward.
27. The passage best supports the conclusion that during an anti-El Nino the fastest-moving signal waves are
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