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- 1. Multiple Choice
Often water must be treated to become _______, safe to drink
pathogen
potable
clarified
bonifide
- 2. Multiple Choice
Which of the following is NOT a residential use of water>
cooking and drinking
washing dishes and clothes
washing cars and watering the lawn
watering the crops
showers and toilets
- 3. Multiple Choice
What is the best way to CONSERVE water use in an agricultural setting...
low flow toilets
reuse cooling water
drip irrigation
high power overhead irrigation
- 4. Multiple Choice
The image here is how humans control rivers for the last few hundred years. This is
diverting water thru canels
create an aquaduct
damming a river
desalination plant
- 5. Multiple Choice
Fluoride may be added in...
coagulation.
additional treatment.
second filtration.
aeration.
- 6. Multiple Choice
Which of the following is a disadvantage of dams and reservoirs?
man made lakes used for drinking water, recreation and industry
hydroelectric power
existing ecosystems changed, displacing species and humans
flood control
- 7. Multiple Choice
While expensive and inefficient now, the removal of salt from ocean water may help create more potable water in the future
water transport
towing icebergs
desalination plants
xeriscaping
- 8. Multiple Choice
Many areas of the world without adequate fresh water have become habitable because:
water conservation has been implemented.
icebergs have been towed in to provide fresh water.
water management projects have diverted water to the area.
rainfall patterns have changed.
- 9. Multiple Choice
Layers of sand, gravel, and hard coal remove impurities in...
coagulation.
first filtration.
second filtration.
chlorination.
- 10. Multiple Choice
The largest single use of water for industrial purposes is for
canning and food processing.
cooling.
power production.
washing produce in food processing industries.
- 11. Multiple Choice
This step removes odors and improves taste.
coagulation
first filtration
second filtration
aeration
- 12. Multiple Choice
In general, water use worldwide is dominated by
Agricultural use
Domestic needs
Industrial activities
All of these are sectors that use water about equally
- 13. Multiple Choice
Process used in water treatment process where chemicals like alum is added to water causing flocs- globs of trash that pathogens stick to.
filtration
chlorination
coagulation
bioreactors
- 14. Multiple Choice
Conserving water for residential use would involve
xeriscaping
drip irrigation
reusing cooling water
manufacturing goods
- 15. Multiple Choice
What percent of water is used for industrial use?
5%
19%
40%
67%
- 16. Multiple Choice
The step that prevents bacterial growth is...
coagulation.
additional treatment.
second filtration.
chlorination.
- 17. Multiple Choice
What provides crops with water from sources other than direct precipitation?
Aeration
Irrigation
Coagulation
Xeriscaping
- 18. Multiple Choice
What percent of water is used for Agricultural use?
5%
19%
40%
67%
- 19. Multiple Choice
Large trash items are removed in...
coagulation.
first filtration.
second filtration.
aeration.
- 20. Multiple Choice
A reservoir is...
a place where seawater is stored for desalination.
an artificial lake formed in front of a dam.
the place where all the toilet paper is hoarded.
an artificial lake formed behind a dam.
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