chapter 8 gpq: mario, lytria 8-1 1.drought is the prolonged period in which precipitation is at...
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Chapter 8 GPQ: Mario, Lytria8-1
1.Drought is the prolonged period in which precipitation is at least ____% lower and evaporation is larger than normal.
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Name 2 of 3 Major River Basins in the Middle East
2.
A.
B.
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Fresh water resources in the U.S
3. Much freshwater in the U.S is contaminated by _______ and _______ practices.
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Water shortages
4. _/_ lacked regular access to clean drinking water.
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Fresh water is irreplaceable
• 5. The hydrologic cycle is responsible for____
• Collecting water• Purifying water• Recycling water• Distributing water• All of these
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6. ___ billion did not have access to basic sanitation.
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Water found in the spaces in soil, gravel, and rock is called?
7.________
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8-2 How to increase water supply
8. What are the three largest grain producers?
A. India, China, U.SB. India, Mexico, PakistanC. U.S, China, MexicoD. Saudi Arabia, U.S, India
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Dams
9. Main purpose of a dam and reservoir system are to ____ , ______ and _______ it as needed to control floods, to generate electricity and to supply water for irrigation and towns and cities.
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Dams
10. Large dams and reservoirs A. reduce danger of flooding upstream B. inexpensive to build C. can’t be used for recreation D. can be used to provide electric power
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How to increase water supply
11. The disastrous affects of a large scale water transfer project was demonstrated in which body of water_______
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Fig. 13-3, p. 316
Unconfined Aquifer Recharge Area
Precipitation Evaporation and transpiration Evaporation
Confined Recharge Area Runoff
Flowing artesian well
Well requiring a pump Stream
InfiltrationWater table Lake
InfiltrationUnconfined aquiferLess permeable
material such as clay
Confined aquiferConfining impermeable rock layer
13.
14.
12.
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8-3
15. Drip or trickle irrigation is also called _______.
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16. The capital cost of a new type of drip irrigation is 1/10as much as conventional drip system?
True or False
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17. Clearing land will increase the lands water retention
True or False
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18. Conserving water
A. Reduces the burden on wastewater treatment plants
B. reduces the need for dams C. saves money and energy D. decreases pollution of surface water E. all of these
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19.
A ______ is a flat tract of land bordering a river, mainly init’s lower reaches, and is formed by the water’s flow downstream.
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20.
• Removing water meters in homes and business can decrease water waste
• True or False
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21.
______ is the most practical irrigation method
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8-4
• 22. • What is it called when normal channels spills
into the adjacent area???________
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23.
Flooding is caused mostly by ______
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24. Which of the following human activities contribute to flooding
A. Urbanization B. Deforestation C. Overgrazing D. Draining wetlands E. All of the above
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Fig. 13-25a, p. 339
Oxygen released by vegetation
Diverse ecological habitat
Evapotranspiration
Trees reduce soil erosion from heavy rain and wind
Agricultural land
Tree roots stabilize soil
Vegetation releases water slowly and reduces flooding
Forested Hillside
26.
25.
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8-5
27. Which of the following is a point source of water pollution?
A. Offshore oil well
B. Livestock feedlot
C. Urban land
D. Logged forest
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28. Logged forest is a nonpoint source of water pollution
True or False
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29.
_________ are diluted sources of pollution that are difficult to trace and diagnose and even more difficult to clean
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30.Ground water can readily purify itself of wastes and contaminants
True or False
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8-6
31. Heat, organic wastes, and inorganic plant nutrients may deplete dissolved ________ from water
A. NitrogenB. OxygenC. MineralsD. Hydrogen
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32.
________ is the name for the natural process of nutrient enrichment of a water body
A. Eutrophication B. Flow C. Yo Mama
D. Watering your lawn
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33.
In the 1970’s ____ ______ control laws was enacted.
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34.
True or False
In rivers, the oxygen content increases as the water’s temp. rises
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8-7.
35. The drinking water for about half of the U.S
population and 95% of those in rural areas comes from ________.
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36.
Ground water can be contaminated from a build up of natural wildlife secretion
True or False
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37.
The most effective and cheapest methods of protecting ground water is to use methods to prevent contamination
• True or False
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38.
• Groundwater provides _____% of the counties drinking water.
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8-8
39. Deep ocean trenches is the least polluted from ocean dumping and coastal development.
• True or False
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40.
Recovery from exposure to crude oil takes much longer than recovery from exposure to refined oil.
• True or False
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41. Scientists estimate that current cleanup methods can recover no more than __% of the oil from a major spill.
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8-9
42. The Federal _____ ________ ______ act of 1972.
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43. The system most commonly used in many developed nations to treat raw sewage on personal property is
A. living machines B. composite C. primary treatment D. septic tanks
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44. _______ _______ treatment is the physical process that uses screens and a grit tank to remove large floating objects.
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45.Most effective and least costly means of dealing with water pollution is ________.
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Extra credit
The life straw is ______ ______ ______ device.