The Water Cycle and fresh water
An Essential Resource
Impact of a water shortage
Clean and safe water
Miscellaneous
100
What is the part of the water cycle where precipitation runs off the land into rivers and streams?
What is surface runoff
100
What is aquaculture?
What is raising fish in a controlled environment
100
Why are freshwater shortages a global problem?
The human population is increasing
100
In a sewage treatment plant, what is added to kill harmful bacteria?
What is chlorine
100
How much of the total water on Earth is freshwater?
What is 3%
200
Which part of the water cycle is the sum of evaporation from the land surface plus transpiration from plants?
What is evapotranspiration
200
Why is water important for all living things?
What is most life functions depend on water
200
What are ways that water shortages can occur on earth?
What is droughts and overuse
200
What type of system is used to treat the waste water in a large city?
What is a sewer system
200
Most of the freshwater on the earths surface is in what form
What is solid
300
What is the process of the water cycle when solid or liquid water falls from the clouds?
What is precipitation
300
Why do people build locks at some river dams
Locks allow ships and boats to travel past dams
300
What is one way to conserve water in the home?
What is turning off water while brushing your teeth
300
The amount of a substance that is in another substance is described by what term?
What is concentration
300
What is one of the benefits of aquaculture
What is it provides fish for food
400
Which water cycle process forms clouds?
What is condensation
400
What is the term to describe the use of water to grow crops?
What is irrigation
400
What are two possible solutions to shortages of freshwater?
What is desalination and conservation
400
The term for pollution that can be traced to a specific location is
What is a point-source pollution
400
What is necessary for an aquifer to form?
What is a layer of permeable rock
500
In which water cycle process does liquid water become water vapor?
What is evaporation
500
What is a function of a dam?
What is to control the flow of water
500
What is a long period of time with little or no rainfall?
What is a drought
500
A pollutant that enters a body of water from an unknown source is considered to by what kind of pollutant
What is a nonpoint-source pollutant
500
In a sewage treatment plant, sludge and oil are consumed by
What is bacteria
M
e
n
u