Which statement about longitude and latitude is true? Latitude measures the distance from the equator.
Longitude measures the distance from South America.
Lines of latitude measure the distance east or west of the prime meridian.
Lines of longitude measure the distance north or south of the equator.

answer called a epicycle;

explanation:

since the crust is readily accessible, scientists have been able to perform hands-on experiments to determine its composition; studies on the more distant mantle and core have limited opportunities samples. so scientists also rely on analyses of seismic waves and gravity and as well as magnetic studies.