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s6 ch8 test

Freshwater Resources

QuestionAnswer
What are the 3 common sources of drinking water? aquifers, rivers, reservoirs
What does water hardness measure? Magnesium and Calcium
What are the 4 major steps in treating drinking water? filter, coagulate, filter, chlorinate
Why is water pressure important? It enables water to travel to houses around town
What is sewage? Household wastewater and the wastes in it
What area of homes will use septic systems? Homes not connected to a public sanitary system
What is a period of time without rain? drought
What is the process of removing salt called? desalination
What is energy stored called? potential
What is energy of motion called? kinetic
What is using a resource wisely so that it won't get used up called? conservation
What is specific sources of pollution that CAN be identified? Point source
What is a widely spread source of pollution that CANNOT be identified? Nonpoint source pollution
Chemicals used in agriculture to kill pests are called? pesticides
Name three types of pollutants found in road runoff. gas, oil, and salt
What are advantages of hydroelectric power? free, clean, safe
What are disadvantages of hydroelectric power? expensive to build the dam, floods everything behind the dam, prevents nutrients from flowing down river
Created by: kbteach
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