Chapter 2 Watershed Dynamics Test Study Stack
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Sewage plant | point source pollution
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| storm water runoff in a city | non-point source pollution
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| new highway built | non-point source pollution
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| runoff from a road into a nearby stream | non-point source pollution
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| sediment run-off, the main pollution problem in the Yadkin River Basin | non-point source pollution
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| What happens to stream flow if you cut down trees in a forest near a stream? | stream flow increases
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| Causes of sediment pollution in streams and rivers are: | agriculture, new construction, new housing developments, new roads, bridges
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| Eventually, water in a river basin empties into the _________ | ocean
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| When studying pollutants in a watershed, scientists have concluded that | pollutants are carried by the water as runoff into a central river
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| New developments or construction often results in | an increase in the level of contaminants that enter the basin
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| Silt fencing, sandbags and gravel are often put around construction sites. Why? | They help prevent the erosion of exposed topsoil into the surrounding areas.
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| In a growing community, citizens have to consider _________________________ | local water supplies.
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| Many existing reservoirs of fresh, uncontaminated water are | being depleted and stressed by contamination.
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| Over 1 billion people in the world do not have access to clean, safe water for the following uses: | consumption, sanitation, hygiene
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| Which land use would include pollution from oil and gasoline discharge from automobiles and storm sewer drainage? | Urban runoff
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| Define "habitat." | Requirements an organism needs to sustain life including food, shelter and water.
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| Which creates more surface runoff: paved areas or wooded areas? | paved areas
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| Reason vegetation in riparian zones help to maintain water quality: | Controls erosion by slowing surface runoff; sediments and some pollutants get removed before water drains into streams; provides shade for stream preventing large swings in temperatures.
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| List the 4 major land uses identified by watershed managers | Forests; wetlands;agriculture;urban
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
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You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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