1. Desert By: John Hess, Adam Kalinowski, and Luke Sullivan, Andoni Giacoletti

2. Geological Features Desert- An extremely dry region with about little to no plant life present. About 1/3 of Earth’s landmass is desert. Often created because they are located in a rain shadow. Usually have less vegetation to prevent erosion. Includes alluvial fan, arroyo, bajada, blowout, butte, desert pavement, desert varnish, dunes and flash floods. characteristics: sparse vegetation & animals, cacti, succulents, drought tolerant, reptiles, insects, rodents, birds

3. Temperature Not much precipitation; occasional showers Variable daily & seasonally, hot & cold

4. Types of Plants Cactus, Mesquite, Creosote, Ocotillo, Desert Ironwood, Joshua Tree, Jumping Cholla, Mojave Aster Most plants are drought resistant.

5. Human Impact on desert A human activity that hurts the desert is off roading. The reason why off roading hurts the desert is: They leave tracks in the desert The tracks kill plants, and the animals can’t eat dead plants It also kills animals that hide in the sand

6. Types of animals Texas horned lizard Ostrich Black widow Desert toad Roadrunner

7. Commercial Value Desert prospecting Hunting for meteorites oiling

8. Works cited http://library.thinkquest.org/C0113340/text/i mpact/impact.desert.html http://library.thinkquest.org/C0113340/text/i mpact/impact.desert.html http://www.desertanimals.net/