The state of Louisiana experiences periodic occurrences of higher than average flooding. Which weather phenomenon most likely causes this and why? La Niña, because of weakening of trade winds
El Niño, because of weakening of trade winds
El Niño, because of strengthening of trade winds
La Niña, because of strengthening of trade winds

El Nino because of strengthening of trade winds!

Explanation: :) have a good day or night <3.

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.