Question

why are there so many earthquakes in south america? south americas proximity to two major oceans and the equator. south americas location atop the nazca and south american plates of the circum - pacific belt. south americas lack of stable infrastructure and good building codes. south americas incredible biodiversity lends itself to hazardous conditions.

Explanation:

Earthquakes are mainly caused by tectonic plate movements. The circum - Pacific belt (Ring of Fire) is a seismically active zone. South America lies on the boundary of the Nazca and South American plates, where plate interactions (subduction, collision) generate earthquakes. Proximity to oceans/equator, infrastructure, and biodiversity are not primary causes of earthquakes.

Answer:

B. South America’s location atop the Nazca and South American plates of the circum - Pacific belt.