Fold Mountains: Formation

Fold mountains are formed by the movement of Earth's tectonic plates, which collide and cause sedimentary rock to fold and rise over millions of years. This process, known as orogeny, has created famous mountain ranges like the Alps, Rockies, Andes, and Himalayas. These mountains continue to grow, as evidenced by ancient seashells found at their peaks.

What is the primary cause of fold mountain formation?

• Glacial activity

• Volcanic eruptions

• Tectonic plate movement

• Erosion by wind

What is the process called when one tectonic plate is forced under another?

• Volcanism

• Erosion

• Subduction

• Sedimentation

Which term describes the entire process of fold mountain formation?

• Metamorphism

• Orogeny

• Sedimentation

• Erosion

Which mountain range was formed by the collision of the African and Eurasian tectonic plates?

• Andes

• Alps

• Himalayas

• Rocky Mountains

What evidence suggests that the Himalayas were once underwater?

• Glacial deposits

• High levels of erosion

• Discovery of ancient seashells

• Presence of volcanic rocks