Desert Geography
The vast majority of the geographic features in the desert include only sand or rocks and gravel. Vegetation, although diverse, is scare. Though there are sand dunes that appear as hills, the lie of the land is flat. A water-rich ecosystem that can be found in the desert is called an oasis. An oasis is fed by underwater streams and often occurs in a low enough area so that the water table can be tapped.
Water and wind erosion has slowly shaped deserts and will continue to do so. When rare, heavy rains flood the deserts, rocks and sand are swept away. As the rocks and sand are swept through valleys they make them deeper and wider. The water eventually pushes the rocks in low areas of the valley.
Lastly there are Canyons & plateaus, are formed by water erosion.
Water and wind erosion has slowly shaped deserts and will continue to do so. When rare, heavy rains flood the deserts, rocks and sand are swept away. As the rocks and sand are swept through valleys they make them deeper and wider. The water eventually pushes the rocks in low areas of the valley.
Lastly there are Canyons & plateaus, are formed by water erosion.