Which mountain chain that is 4,500 miles long, forms south america's "spine? "

ANDES is the answer for which mountain chain is 4,500 miles long, forms South America

Sequoia national park  /  inyo national forest, california, u.s. mount whitney is the tallest mountain in california, as well as the highest summit in the contiguous united states and thesierra nevada—with an elevation of 14,505 feet (4,421 m).

Earthquake waves that vibrate from side to side and up and down only through solids are known as "seismic waves."hope my answer has you : )