Water Quality
What is Water Quality?
A measure of the health of a water supply
What is a point source of pollution?
A single,identifiable, localized source of pollution
What is the Hydrosphere?
All the water found in,on,and around the earth
What is a river basin?
The land area that water flows across or under on its way to a particular river
What is a benthos?
bottom dwelling,deep sea creatures
What is PH?
The acidity of water
What act happened in 1974?
Safe Drinking Water Act
How much of the earth is covered in water?
71% is covered in water
North Carolina is divided into how many river basins?
17
What is the lowest ocean zone?
The Abyssal zone
What are the results of high turbidity?
Blocks sunlight for photosynthesis
What does EPA stand for?
Environmental Protection Agency
Most freshwater is locked up in what?
ice
The Mississippi river basin eventually flow into the?
Gulf of Mexico
Does the Dysphotic zone have enough sunlight for photosynthesis?
sunlight reaches it but it does not enough for photosynthesis
What are the results of change in dissolved oxygen?
When DO drops too low, fish die
What is the third step in Drinking water treatment?
Flocculation
What percent of freshwater is accessible on earth's surface?
only 1%
The twelve eastern basins all drain into what ocean?
Atlantic Ocean
Surface currents carry what temperature of water?
carry warm water along the surface of the ocean
On the PH scale what is considered neutral?
7 is neutral
What are the chemicals added to Coagulation?
Ferric Chloride, Lime, Alum
Most liquid freshwater on earth is found in the form of?
Groundwater
How do estuaries act as buffer zones?
By absorbing floodwater and storm surges before they reach inland areas
Where are hydrothermal vents found?
They are found in the abyssal zone