The term southern oscillation most nearly refers to which of the following?

a. gyre formation
b. climate moderation
c. a particular ocean current
d. a reversal of wind direction

The term Southern Oscillation most nearly refers to a reversal of wind direction

Option D

Explanation:

Southern Oscillation, a component of the atmosphere in one large-scale interaction called El Niño / ENSO. The equatorial cycle fluctuates after irregular periods of about many years in response to alter in atmospheric pressure in the tropical Indo-Pacific.

With the weakening of the east-west wind during the southern oscillation phase, warm water may slide back west, increasing the flow of the equator up. Surface water temperatures and sea levels fall west and rise east, which is why this event is called El Niño.

The answer is D. a reversal of wind direction hopefully this helps! good luck to you!

helicase, i think thats it