Question

question 20
1 pts
the el niño southern oscillation can best be described as:

the relationship between sea surface temperature and changing atmospheric pressure.

relative changes between two different atmospheric pressure systems at high altitude.

variation in wind speed over the pacific ocean.

tidal differences between coastal peru and darwin, australia.

wind speed and wind direction differences along the equator.

Explanation:

The El Niño - Southern Oscillation (ENSO) is a coupled ocean - atmosphere phenomenon. It is characterized by the relationship between sea surface temperature (in the equatorial Pacific) and changes in atmospheric pressure (Southern Oscillation). The other options do not comprehensively describe ENSO. For example, it is not just about high - altitude pressure systems (it involves the ocean - atmosphere interaction), not just wind speed over the Pacific (it's more complex than that), not tidal differences (tides are a different oceanic phenomenon), and not just wind speed and direction along the equator (again, it's a more complex ocean - atmosphere coupling).

Answer:

the relationship between sea surface temperature and changing atmospheric pressure.