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8Sci_Watershed
What's In A Watershed?
| Question | Answer |
|---|---|
| What impact does a new development have on the river basin it is built in? | it increases the level of contaminants that enter the basin |
| A sewage plant is an example of what? | a point-source pollution |
| When cutting down trees, will it add more or less sediments to the water? | more |
| What is the most important thing for a growing community to consider? | local water supplies |
| What eventually happens to the water in a river basin? | it drains to the ocean |
| What does agriculture cause in water? | sediment pollution |
| What does a new highway that increases water runoff from the paved surfaces into nearby streams cause? | non-point source pollution from runoff |
| What is the perimeter of silt fencing, sandbags and gravel around construction sites designed to eliminate? | the erosion of exposed topsoil into surrounding areas |
| Storm runoff in a city is an example of what? | non-point source pollution |
| What impact does the cutting of a forest have on the stream flow? | the stream flow increases |
| What was the conclusion from a study of pollutants in watersheds? | pollutants are carried by the water as runoff into a central river |
| What are the 4 major land uses identified by watershed managers? | urban, forests, agriculture and wetlands |
| What are the main reasons that over 1 billion people don't have access to clean, safe water? | consumption, sanitation, and hygiene |
| What is a habitat? | certain requirements for sustaining life |
| What is happening to existing reservoirs of fresh, uncontaminated water? | they are being depleted and stressed by contamination |
| What type of pollution problem is found in the Yadkin-Pee Dee Watershed? | non-point pollution |
| What is the main pollution problem for the Yadkin-Pee Dee River Basin? | sediment runoff from agricultural areas and housing developments |
| Does cities and suburbs or wooded and natural areas create more surface runoff? | cities and suburbs |
| What does runoff from a road into a nearby stream describe? | non-point source pollution |
| What does oil and gasoline discharge from cars and storm sewer drainage describe? | urban runoff |
| What are three ways water changes state in the water cycle? | condensation, freezing, and evaporation |
| How does the water change state during evaporation? | it changes from a liquid to a gas |
| How does the water change state during freezing? | it changes from a liquid to a solid |
| How does the water change state during condensation? | it changes from a gas to a liquid |