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8Sci_Water Dynamics

Introduction to Water Dynamics

QuestionAnswer
What are three ways dynamic water bodies continuously change? physically, biologically, and chemically
What would be considered a global water reservoir in the water cycle? the atmosphere
What is a watershed? a region of land draining into a stream, river, pond, lake or other body of water
What is a watershed divide? the boundary of a watershed
How can the atmosphere be considered part of the hydrosphere? It is a source of water
What three factors do the characteristics of watersheds depend on? Geology, Climate & Vegetation
What is the hydrologic (water cycle)? the movement of water between the various global water reservoirs
Has the total amount of water on Earth changed? Explain. No, we are drinking the same water the dinosaurs used over 65 million years ago
What is economic trade-off? when communities need to purchase water from other sources
What is the goal of watershed management? to balance multiple competing demands using scientific studies and human judgment
What are two competing interests for water resources? Economic Development and Preserving Natural Ecosystems
When developers and environmental activists concerns collide is the water in short supply, too much or contaminated? Water is in short supply
Is the water in short supply, too much or contaminated when farmers are pitted against recreational users? Water is contaminated
Is the water in short supply, too much or contaminated when conservation of available resources is important? Water is in short supply
Is the water in short supply, too much or contaminated when water supplies contain improperly disposed chemicals? Water is contaminated
Is the water in short supply, too much or contaminated when you identifiy new sources of water? Water is too much
Is the water in short supply, too much or contaminated when there is flooding after a large storm? Water is too much
Is the water in short supply, too much or contaminated when protection of drinking water reserves is critical? Water is in short supply
What does the way water flows over the land define? the boundaries of river basins and watersheds
What would be considered a global water reservoir in the water cycle? the atmosphere
What is dew an example of? condensation
What body of water doesn't contribute water vapor into the atmosphere? aquifers
Where does most of NC's drinking water come from? groundwater, lakes & rivers
What would you find readily available in our rivers, lakes and streams? fresh water
Where is most of the freshwater on Earth located? icecaps and glaciers
What are aquifers? where groundwater supplies are stored
How does groundwater help to keep surface waters full? it is stored in aquifers and slowly moves into riverbeds
What are wetlands? heavily vegetated areas that are saturated with water for at least part of the year
What is an example of wetlands? swamps, bogs & marshes
What are 4 important functions of wetlands? 1)help reduce flooding, 2)maintain the flow in streams & rivers during dry periods, 3)help purify water that flows through them, 4)provide a rich variety of habitats that support a diverse system of living things
Created by: ndmsteach