What type of water do humans need to survive?
salt water
ocean water
fresh water
polluted water
Which of the following is the greatest residential use of water?
shower
leaks
toilet
washing machine
Despite the planet earth being covered in more water than landmass, more than _____ percent of this water is saltwater that cannot be consumed by people.
10
25
62
97
During a prolonged period of _____, people may run out of water.
drought
rainfall
well drilling
dam building
_____ is any method of bringing water to plants. It allows people to grow crops in areas that are otherwise dry and would not be able to support agriculture.
water treatment
plumping
evaporation
irrigation
Radioactive substances, heavy metals, and oils are examples of _____.
industrial pollution
community pollution
municipal pollution
agricultural pollution
True or False: Water pollution does not affect marine life.
true
false
True or False: Keeping pollutants from getting into the water system is better than cleaning the water up after it is polluted.
true
false
Water quality standards are set by _____, in accordance with the _____ Act.
The EPA; Clean Water
The federal government; Environmental Protection
Clean Water Association; Water Quality
State governments; Clean Environment
Less than one percent of all water on Earth is liquid freshwater. Which is a recreational use of freshwater by humans?
white water rafting
surfing
beachcombing
sea kayaking
What causes more than 88% of diseases worldwide?
plastic pollution in the ocean
airborne viruses
air pollution
unsafe drinking water
Choose the best answer. Water pollution damages drinking water supplies and poses health risks. All of the following are human health risks associated with water pollution EXCEPT:
spread of typhoid fever.
lead and mercury poisoning.
outbreaks of cholera and diarrhea.
increase in acid rain.
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