_____% of water on Earth is fresh water
What is 3%
An undesirable substance in a mixture
What is a contaminant?
This instrument is used to measure turbidity
What is a Secchi disk?
An average of weather conditions in an area over 30 years
What is a climate
A network of pipes that transports dirty or used water
What is a sewer system?
Salinity is a characteristic of which type of water.
What is salt water?
The two main categories of contaminants in water
What are biological and chemical contaminants?
The scale used to measure the acidity in water
What is the pH scale?
Temperature, cloud cover, wind speed and precipitation are used to determine this.
What is the weather?
Water used in cooking falls into this catagory of wastewater.
What is greywater?
The main reason why removing salt from salt water is so expensive.
What is energy consumption?
The town where seven people died after ingesting E.coli found in the drinking water supply
What is Walkerton, Ontario
This factor of water quality can be tested by running an electric current through a water sample.
What is salinity?
The name of this transfer of thermal energy
What is convection?
Wastewater is divided into these two catagories.
What is greywater and blackwater?
This type of technology removes salt from salt water to create fresh water
What is desalination?
Adds nutrients to soil but is considered a contaminant in drinking water.
What is fertilizer?
Nuclear power plants and some industries contribute to this type of water pollution.
What is thermal pollution?
This phenomena is reducing water levels in the Great Lakes
What is global warming?
The name of a system of wastewater treatment consisting of a drainage bed and tank
What is a septic system?
Most of Earth's freshwater is locked up in these very dense blocks of ice
What is a glacier?
This type of rain has cost the Canadian forestry industry hundreds of millions of dollars.
What is acid rain?
This chemical is added to drinking water to kill unwanted organisms
What is chlorine?
These large water bodies moderate the climate the Canadian cities situated on their shores.
What are the Great Lakes?
This stage of the wastewater treatment is used in large cities to remove organic matter from wastewater.
What is secondary treatment?