livLflorrenaryycra livLflorrenaryycra

22-05-2016
Geography

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How often does an El Ni o event occur?
a. about every other year
b. every 10 years
c. about every 2 to 3 years
d. about every 3 to 7 years

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stormshadow0915 stormshadow0915

22-05-2016

El Nino happens about every two to seven years. The closest answer here would be D., about every three to seven years

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