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Q: Which of the following normally signal the disappeance of an E1 Nino?
  • A. The arrival in the eastern Pacific of negative sea-level Kelvin waves.
  • B. A shift in the direction of the winds produced by the start of an anti-E1 Nino elsewhere in Pacific.
  • C. The reflection of Kelvin waves after they reach the eastern boudary of the Pacific.
  • D. An increase in the speed at which negative Rossby waves cross the Pacific.
Correct Answer: Option A - According to the passage 'The arrival in the eastern pacific of negative sea-level Kelvin waves' is normally signal the disappearance of an EI Nino. Thus, the correct answer is option (a).
A. According to the passage 'The arrival in the eastern pacific of negative sea-level Kelvin waves' is normally signal the disappearance of an EI Nino. Thus, the correct answer is option (a).

Explanations:

According to the passage 'The arrival in the eastern pacific of negative sea-level Kelvin waves' is normally signal the disappearance of an EI Nino. Thus, the correct answer is option (a).