What climate conditions occur during La Niña?

During a La Niña year, winter temperatures are warmer than normal in the Southeast and cooler than normal in the Northwest.

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Explanation:

i'm thinking (a) to keep sand in place; ////////////

explanation: a sand fence or sandbreak, like a snow fence, is used to force windblown, drifting sand to accumulate in a desired place. sand fences are employed to control erosion, sand dune stabilization, keep sand off roadways, and to recruit new material in desert areas.

within 30 of the equator hope this