This type of water is found in lakes, rivers, streams, and wetlands.
What is surface water?
100
What activity accounts for the greatest percent er used of fresh water used worldwide?
What is irrigation/agriculture?
100
This type of pollution comes from many types of sources that are often difficult to identify.
What is nonpoint -source pollution?
100
This was one of the first laws designed to improve water quality for swimming and drinking.
What is the 1972 Clean Water Act?
100
Pollution that discharges from multiples sources that can be difficult to identify.
What is nonpoint source pollution?
200
This is a flowing network of water.
What is a river system?
200
This includes both physical and chemical treatment methods that include filtration, chlorination, and aeration.
What is drinking-water treatment?
200
This is a type of pollution that consists of disease-causing organisms such as bacteria or parasitic worms.
What is a pathogen?
200
Most of the oil that pollutes the ocean comes from
What is runoff from cities and towns?
200
Land that drains into a river.
What is a watershed?
300
An example would be gravel that allows the flow of water.
What is permeable?
300
This is a major source of water use in industry and power generation.
What is a water cooling tower or water cooling lake?
300
This is a product of wastewater treatment which is solid and contains dangerous concentrations of toxic chemicals.
What is sewage sludge or sludge?
300
Which of the following is a source of point - pollution?
a. unlined landfills
b. runoff from city streets
c. precipitation containing air particles
d. runoff from farms
What is a - unlined landfills?
300
Phosphates in laundry detergent contribute to this process that increases the amount of nutrients in a body of water.
What is eutrophication or artificial eutrophication?
400
Only 3% of water on the surface of the earth is fresh water, how much of this fresh water is in icecaps and glaciers?
What is 77 percent?
400
This type of system offers a promising step toward conserving water from evaporation, seepage, and runoff; by delivering small amounts of water directly to the plants root.
What is a drip irrigation system?
400
This act attempts to protect US waterways from oil pollution by requiring that oil tankers in US waters be double hulled.
What is the 1990 Oil Pollution Act?
400
What is used to divert water to areas that do not have sufficient water available?
What is a canal?
400
This is an area above an aquifer where water will percolate.
What is a recharge zone?
500
Ohio is a part of this watershed, along with much of the eastern United States.
What is the Mississippid river watershed?
500
This is the body of water that forms behind a dam.
What is a reservoir?
500
This process has alarming consequences which allows pollutants to build up at high levels in the food chain.