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Question
Which among the following statements characterized EI Nino?

  1. It occurs at irregular intervals

  2. It carriers warmer water

  3. It carries less saline water

  4. Its atmospheric equivalent is southern oscillation.


Select the correct, answer using the code given below
Options:
A .  II and III only
B .  I and II only
C .  I, II, III and IV
D .  III and IV only
Answer: Option C
Answer: (c)
EL Nino, unusual warming of surface ocean waters in the eastern tropical Pacific is part of southern oscillation.
Scientists do not know exactly how El Nino forms. It is said that El Nino may have contributed to the 1993 Mississippi and 1995 California floods. The average period length of EL Nino is 5 years.

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