Which of the following mountain ranges was formed by a continental-continental convergent boundary?

a. the Andes Mountains

b. the Black Hills

c. the Himalayas

d. the Sierra Nevada

The Cascade Mountain Range is a line of volcanoes above the melting oceanic plate. The Andes Mountain Range of western South America is another example of a convergent boundary between an oceanic and continental plate. Here the Nazca Plate is subducting beneath the South American plate.