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Why are watershed protection programs needed in Virginia? Check all that apply. Ecosystems need to be controlled. Floods can carry pollution and destroy habitats. Dams can be damaged and may require repair. Humans can be reckless during recreational activities. Wildlife can ruin water sources when building habitats. |
| Answer» EXPLANATION: Upgrade to remove ads Only ₹83.25/month Ch 7 - Rivers and Flooding STUDY PLAY watershed Click card to see DEFINITION area of land where all of the water that is under it or drains off of it goes into the same place. all the land that contributes water to a trunk river. individual streams in the watershed carry water and SEDIMENT. ALSO called drainage basins and catchments. Click again to see term surface runoff Click card to see definition surface runoff from precipitation onto the land flows together toward lower areas such as lakes or oceans. Click again to see term 1/109 Created by mlifsch2 Terms in this set (109) watershed area of land where all of the water that is under it or drains off of it goes into the same place. all the land that contributes water to a trunk river. individual streams in the watershed carry water and sediment. also called drainage basins and catchments. surface runoff surface runoff from precipitation onto the land flows together toward lower areas such as lakes or oceans. drainage divide individual watersheds are separated from one another by a drainage divide- the highest topographic divide in the area. tributaries streams that flow into other streams. they contribute to another river. tributaries merge into the main trunk river. water supply river water supply is determined by area and precipitation overland flow/runoff the water that flows over the land surface to feed rivers. groundwater some of the precipitation that falls will infiltrate the ground and supply water to groundwater. some of the runoff stored in ponds or dammed lakes will also infiltrate the ground. removal of vegetation removal of vegetation from an area, such as clear cutting forests or crop harvesting, can increase surface runoff. urbanization urbanization that covers the ground with BUILDINGS and pavement decreases infiltration and increases surface runoff. discharge the amount of water flowing through a river at any given time. discharge is a rate- the volume of water flowing past a specific point in the river each second. discharge = area x velocity. factors of discharge the discharge of a river depends mainly on two factors: the size of its watershed, and the amount of precipitation. high discharge | |