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12 week assesment

QuestionAnswer
What are the income and expenses of Earth's water budget? The income is precipitation, and the expenses are evapotranspiration(evaporation and transpiration) and runoff.
What are some personal(individual or family) uses of water? Personal uses of water include: drinking, cooking, washing clothes and dishes, bathing, watering lawn, washing cars, etc.
What happens to 90% of the water used by cities and industry? Why is bad? It is returned to rivers and lakes as waste water. It is bad because it can affect water quality-temperature, turbidity, sometimes toxins.
How much of Earth's surface is covered by water? Approximately 2/3 or 70%.
How much of Earth's water fresh water? Approximately 3%.
What is desalination? The process of removing salt from ocean water it drinkable.
Name some of the different watersheds that we live in: We live in the White Lake, Lake Michigan, Great Lakes, and Atlantic watersheds.
Give examples of suspended load:__________, bed load:_______ and dissolved load:________ Suspended load:silt and sand Bed load:larger pebbles/rocks Dissolved load: salt and other chemicals
What is the effect of stream gradient on its discharge? The higher(steeper) the gradient, the faster the stream is flowing, so more discharge(amount of water flowing).
How does a meander become an oxbow? Over time meanders become more pronounced. Eventually the river cuts across the narrow neck of land separating two meanders, which isolates meander and forms and oxbow(lake).
What does a braided stream look like? A braided stream is composed of multiple channels that divide and rejoin around sediment bars.
What is an aquifer? An aquifer is a body of rock or sediment in which large amounts of water can flow and be stored.
What is the difference between porosity and permeability? Porosity has to do with the amount of open spaces in a rock or sediment, permeability has to do with how those spaces are connected(allowing water to flow through).
Name a permeable rock type: Name an impermeable rock type: sandstone clay
What are the two zones of an aquifer? zone of aeration-spaces filled with air(or some water) zone of saturation-filled with water totally
How does a perched water table form? Forms when water collects on top of a layer of impermeable rock that is above the main water table.
Give an example of a recharge zone. Storm drains, old wells, waste dumps, near the ocean, etc.
How does a cone of depression form around a well? A cone of depression forms because of the over-pumping of groundwater.
What causes water to be pushed up through an artesian well? The force of gravity(weight of the water in the sloped aquifer) pushes water down and then up and out.
What is a geyser? an erupting hot spring
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