Test on chapters 13 and 20
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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Approximately what percentage of the water on Earth is saltwater? | show 🗑
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show | Desertification
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One way to conserve water in agriculture is to employ | show 🗑
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show | Most efficient irrigation method consisting of a network of plastic tubing installed with small pinholes to deliver drops of water more precisely. It reduces 90% of water waste.
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show | Considered non-renewable
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show | A large-scale water diversion project
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show | Surface water
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show | Transpiration
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Underground caverns and porous layers of sand, gravel, or bedrock through which groundwater flows | show 🗑
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Upper surface of the zone of saturation | show 🗑
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Confined aquifer | show 🗑
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show | Flooding
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One method of desalination is | show 🗑
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Which best explains the general downward trend in Colorado River flow from 1910 to 1970 | show 🗑
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What can be inferred from river flow decreasing | show 🗑
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Colorado River Case Study | show 🗑
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show | 0.024%
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Causes of water shortage | show 🗑
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show | Extracting groundwater, building dams, transferring water from one place to another, desalination
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Floodplains | show 🗑
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Water table | show 🗑
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show | Spaces in soil and rock below a certain depth that are completely filled with water, falls in dry weather, rises in wet weather
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show | Underground caverns and porous layers of sand, gravel, or rock through which groundwater flows
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Watershed | show 🗑
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show | Structure built across a river to control the river's flow
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show | Dammed water creates an artificial lake
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Distillation | show 🗑
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Reverse osmosis | show 🗑
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show | Uses low pressure sprinkler pumps to spray water on a crop and allows 80% of water to reach crops
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show | 70% of drinking water from desalination, the rest is from pumping deep aquifers. Most of water is used to irrigate crops. In 2008 it announced that their biggest aquifer had been depleted and that they would stop wheat production
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Ogallala Aquifer | show 🗑
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show | Catskill watershed 125 miles provides more than 90% of the city's supply, rest comes from Croton shed. Water is treated at the source naturally and the feds exempt us from other filtration. Aqueduct relies on gravity alone
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show | Under construction is the world's largest irrigation dam on the Yangtze river. The dam will flood farmland and force relocation of many people living in cities and villages along the river banks.
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show | Densely populated, rely on moderate annual flooding but recently there have been severe floods which destroyed crops and houses, destruction of Mangrove forests led to more severe floods. They are trying to adapt to flooding conditions with diff crops
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Multiple dams have been erected along the Colorado River. Identify TWO benefits other than agriculture and recreation that people derive from that system of dams. | show 🗑
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show | Habitat alteration, displacement of native species, risk of flood from failure of dam, disruption of fish migrations, sedimentation behind dam
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show | Water moves and is directed to a turbine, water rotates the turbine and electricity is produced when the rotation drives a generator
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Identify TWO economic benefits, other than hydroelectric power generation and control of downstream flooding, associated with dams. | show 🗑
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Describe one ecological benefit of seasonal flooding of the floodplain of a free-flowing river. | show 🗑
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show | Dams block flow of sediments from upstream, prevents flooding and erosion. Deforestation increases erosion because it removes a natural blockade and increases the sediment load into the river
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How is water quality tested and measured? | show 🗑
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Oxygen Sag Curve | show 🗑
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Water pollution in developed vs developing countries | show 🗑
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US Safe Drinking Water Act | show 🗑
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Bioaccumulation | show 🗑
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Clean Water Act | show 🗑
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show | Bacterial disease of small intestine contracted from infected water supply that causes severe vomiting and diarrhea
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show | Spreads through contaminated food or water- high fever, headache, constipation, diarrhea
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Parasites | show 🗑
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show | Discharge from a combined sewer caused by excess runoff
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Dead zones | show 🗑
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show | Sewage sludge is produced as a muddy byproduct during waste water treatment
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Gray Water | show 🗑
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show | Underground chamber for basic sewage treatment, settling sediments
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Cuyahoga River | show 🗑
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Deepwater Horizon | show 🗑
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show | Oil spill in Alaska's Prince William Sound
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show | Caused by algal blooms from nitrates from farms. Scientists fear that the situation could reach a tipping point and the ecosystem could collapse
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Flint Michigan | show 🗑
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show | Pollution from industrial waste, exposure to cancer causing chemicals, EPA dredged and capped areas containing contaminated sediment
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show | Eutrophication problem in the 1960s from industrial waste that has since been fixed with Great Lakes Water Quality Agreement. Now, problems still remain because cities dup raw sewage into lake and non point fertilizers and nutrients
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Great Pacific Garbage Patch | show 🗑
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show | Agricultural activities, eroded sediment, industrial facilities, mining,
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Solutions to water pollution | show 🗑
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Clean zone | show 🗑
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Decomposition zone | show 🗑
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show | Most fish absent, low levels of oxygen
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Lakes with unexpected large agal blooms due to a lack of secondary waste treatment is the result of | show 🗑
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show | Water flows slowly through grit chambers allowing sand and small particles to settle out
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show | Not used except when warranted by local regulations, nitrates and phosphates are removed
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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.
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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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Created by:
lopiegabby