Final answer:
The sharp, jagged peaks of mountain ranges are created by both tectonic forces upthrusting the Earth's crust and subsequent erosion by water and ice.
Step-by-step explanation:
The mountain range made of tall, sharp, jagged peaks was created through a combination of tectonic activity and erosion. Initially, the upthrusting of the Earth's crust and tectonic forces, like volcanic activity and the compression of the crust, form mountain ranges.
However, the distinct sharp peaks and serrated edges are sculpted afterward by erosional processes, mainly through the action of ice and water. Rivers and glaciers carve the mountains into their rugged forms; glaciation rounds and shapes the peak.
For example, the Rocky Mountains were shaped by such natural forces, including glaciation following their formation during an orogeny event.