Age of Sewage
Mixture of organisms and particulates is called sewage _____.
sludge
The least costly method to disinfect water is by _____.
Chlorination
Wetlands can slow and store ____ water.
Flood water
Excess water from storms is called storm water ____.
Runoff
Sun dunes help in what way?
They are barriers for damaging waves from storms.
Ground water use increased from 25% in 1950 up to 4__% in 2019.
46%
The Sustainable Groundwater Management Act to save water was done in the state of ____________.
California
Lake _____, in Africa is loosing water quickly.
Lake Chad
Currently there are ___ million acres of wetlands.
51 million acres
South Asia and Africa both have what % of sewage that is treated.
0%
The first step in treating sewage is _________.
Physical process of removing larger particles through filters.
In the Sustainable Groundwater Management Act it saves water by 1) reduce withdrawal, 2) allow surface water to soak in, 3) don't even plant crops, & 4) ___________.
plant crops that use less water
What do the cities of London, Mexico City, and Houston have in common?
They all have groundwater challenges.
Ground water supplies what fraction of drinking water in the U.S.?
1/2
New York City gets ____% of its water from the Catskill mountains.
90%
The 2nd step in treating sewage is __________.
Adding bacteria to breakdown the sewage.
Removing water from an aquifer faster than being replaced is called Ground Water _______.
Mining
A river is protected if it is designated as ____ and ____.
Wild & Scenic
The 3 water services are supply for industry, storm water collection, and ______.
Waste water collection & treatment
When sludge has been treated it can be used for cropland, roadside vegetation, or ________.
Golf courses
Waste water that is sprayed over rocks is called the ______ filter system.
Trickle
Disinfecting water can be done by 1) chemical ozone, 2) ultrasonic energy, 3) ____________.
UV light
Wetlands can 1) flood protect, 2) filter sediments, 3) erosion protection, 4) offers food & habitat, & 5) _____.
water storage
Physical process of transferring from one area to another is called water _____.
Diversion
Sewage sludge can be used for 1) put in landfills, 2) used as fertilizer, 3) incinerated, 4) _____________.
Applied directly to land