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Ch12Quiz

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Question
Answer
Although more than two-thirds of Earth's surface is covered by water, many areas lack sufficient water to meet their drinking and agricultural needs. Why? ( Freshwater Systems )   show
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show an underground water source stored in porous rock or sand.  
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Use of the water from the Colorado River has ( How We Use Water )   show
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show groundwater recharge is much slower than recharge of surface water.  
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The largest reduction in worldwide water use would be achieved by   show
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An example of a non-point source of water pollution is ( Water Pollution and Its Control )   show
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show have been so overfished that fishing in some fisheries has been completely banned.  
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show it requires large inputs of energy.  
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show discharging more water loaded with silt into the ocean, helping to build the delta  
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The most cost-effective solution for groundwater depletion and land-level subsidence is ( How We Use Water )   show
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show overconsumption by cotton farmers  
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What is the direct cause of death for aquatic animals during eutrophication? ( Water Pollution and Its Control )   show
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show agricultural.  
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show a high content of dissolved oxygen  
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Salt can be removed from seawater by ( Solutions to Depletion of Fresh Water )   show
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Overpumping of groundwater causes all the following EXCEPT ( How We Use Water )   show
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show cumulative small losses from boats and runoff from land.  
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A marine protected area is ( Overfishing and Marine Conservation )   show
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show phytoplankton.  
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The best term for managing fish populations by maintaining them at a maximum growth rate and achieving maximum yield while keeping fish available for the future is ( Overfishing and Marine Conservation )   show
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Which coastal habitat is a mixing place of fresh and salt water? ( Marine and Coastal Systems )   show
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Ocean areas of high productivity are often found ( Marine and Coastal Systems )   show
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Ecosystem services provided by mangrove forests include all of these EXCEPT ( Marine and Coastal Systems )   show
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show Moratoriums on fishing in certain areas (like the Georges Bank and the Grand Banks) have allowed fish stocks to recover and have helped to reseed other fishing areas.  
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Which of the following is NOT a benefit of marine reserves? ( Overfishing and Marine Conservation )   show
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