Question

the regularity of el niño weather events is determined by
a. the amount of gases that volcanoes create each year on the seafloor near australia
b. changes in the size of a warm pool of water in the seas near indonesia.
c. a decrease in the frozen glaciers at earths poles.
d. the magnetic strength of earths inner core.

Explanation:

El Niño is related to changes in sea - surface temperatures in the tropical Pacific. A key factor is the changes in the warm pool of water near Indonesia. Volcanic gas emissions near Australia, polar glacier changes, and Earth's inner - core magnetic strength are not the determining factors for El Niño's regularity.

Answer:

B. changes in the size of a warm pool of water in the seas near Indonesia.