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C and E Fresh Water Resources Answer Key

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#1 The amount of one substance in a certain volume of another substance is called What is concentration?
#2 Using a resource wisely so that it will not be used up is called What is conservation?
#3 Oil that washes off a road into a stream is an example of this type of pollution What is nonpoint source pollution?
#4 This is the first step in water treatment What is filtration?
#5 Fertilizers in runoff cause this to grow in lakes and ponds What is algae?
#1 A high coliform count is an indicator that the water may contain What is a large number of disease-causing organisms?
#2 The result of sulfur dioxide and nitrogen oxide reacting with water in the atmosphere is What is acid rain?
#3 The process of obtaining fresh water from salt water is called What is desalination?
#4 After this people should boil water for drinking and cooking What is a flood?
#5 Pollution that comes from a specific source is what type of pollution What is point source pollution?
#1 This is added to drinking water to kill bacteria and other organisms What is chlorine?
#2 Chemicals intended to kill insects and other organisms that damage crops are called What are pesticides?
#3 This is the process of particles in water clumping together onto flocs What is coagulation?
#4 The kind of energy that an object has when it is moving is called What is kinetic energy?
#5 Water stored behind a dam has this type of energy What is potential energy?
#1 Wastewater and the different kinds of waste in it are called What is sewage?
#2 These can be used to break down toxic chemicals in rivers and lakes What are bacteria?
#3 When water is carried into fields in open irrigation ditches, much of it is lost to this What is evaporation?
#4 This is the measure of the substances in water beside water molecules What is Water Quality?
#5 Rain that is more acidic then normal is called What is acid rain?
#1 A condition in which an area with normally good precipitation gets scarce rainfall for a few years is a What is drought?
#2 A hydroelectric power plant changes the energy of moving water into What is electrical energy?
#3 Any substance that causes water pollution is called a What is a pollutant?
#4 This occurs when water is in great demand What is a water shortage?
#5 A pH of 7 is What is neutral?
Final Question