Sand Dunes

Sand dunes are natural landforms created by the movement of sand, primarily through the action of wind. They typically develop in coastal areas, deserts, or along rivers, where loose sand accumulates. As wind blows, it lifts and transports sand particles, which eventually settle and form dunes. These structures can vary in shape and size, ranging from small ripples to towering formations. Dunes play a crucial role in ecosystems, providing habitats for various plants and animals, and they also protect coastlines from erosion. Their unique shapes and patterns can change over time due to shifting winds and environmental conditions.