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Geography 10
.Final ch.18
| Question | Answer |
|---|---|
| Desert Terrains are | Stark and Abrupt |
| Desert Special Conditions are | Mechanical weathering Dominant |
| Ergs | Seas of Sand |
| Regs | Stony Desert |
| Mesa and Scarp topography is most closely associated with | Erosion |
| A desert consisting of a large area of sand dunes is termed a | Erg |
| 3 kinds of Surface Water in the desert are | Exotic Streams, Ephemeral Streams,Desert lakes |
| Exotic Streams | Permanent streams that originate outside of the arid land |
| Ephemeral Streams | Periodically flow, result in intense erosion, transportation, and deposition |
| Desert Lakes | Playas and salinas(dry salt lake beds), Saline lakes |
| Examples of Ergs are | Sahara and Arabian deserts |
| Regs desert vanish consist of | Iron and Manganese oxides |
| Barren Bedrock | Hamada |
| Sapping | Groundwater seeps out of the scarp face and erodes soluble material |
| Buttes | Small surface areas and cliffs that rise above surroundings |
| Coastal Dunes | Ocean waves deposit sand on beaches |
| Soil is thin or absent | Exposing bedrock |
| Impermeable caprocks and hardpans have | high runoff |
| Sand covers desert area about | 10% |
| Fluvial erosion in arid lands | Occurs during small portions of the year,residual erosional surfaces, and desert stream channels |
| Fluvial deposition | Piedmont, basin of interior drainage, talus accumulations |