gen-briefly-explain-plate-boundaries-and-landforms-and-one-commo-f46b

Briefly explain plate boundaries and landforms and one common misconception about it.

# Plate Boundaries and Landforms ## Types of Plate Boundaries **Divergent boundaries** occur where plates move apart, creating new crust. They form: - Mid-ocean ridges (like the Mid-Atlantic Ridge) - Rift valleys (like the East African Rift) **Convergent boundaries** occur where plates collide, resulting in: - Mountain ranges (like the Himalayas from continent-continent collision) - Volcanic arcs and ocean trenches (from ocean-continent collision) - Island arcs (from ocean-ocean collision) **Transform boundaries** occur where plates slide past each other horizontally, creating: - Fault lines (like the San Andreas Fault) - Earthquakes, but typically few new landforms ## Common Misconception **"Plates move quickly enough to notice"** Many people think tectonic plates move rapidly or that changes happen suddenly. In reality, plates typically move only **2-10 centimeters per year**—about the speed your fingernails grow. While earthquakes and volcanic eruptions are dramatic and sudden, the actual plate movement and mountain-building processes occur over millions of years. You cannot observe plate motion in a human lifetime without precise GPS instruments.