Water Pollution Question Preview (ID: 41669)


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Why did cities develop wastewater treatment plants in the past century?
a) Ocean water made the freshwater salty.
b) Untreated sewage often ran into freshwater supplies
c) factories released too much smoke
d)

Which is not an advantage of using a sprinkler for irrigation?
a) water can evaporate easily
b) can control the amount of water used
c) less water is wasted
d)

The area of freshwater underground is called the
a) freshwater
b) septic tank
c) aquifer
d) lake

How can a water shortage occur?
a) conserving water in our homes
b) population increase
c) imposing water restrictions in certain areas
d)

Which is not a reasonable way to clean polluted water?
a) use runoff water from farms to dilute lakes/rivers
b) use chlorine to treat drinking water
c) use sand/gravel to filter water
d)

If your wastewater doesn't flow to a sewage treatment plant, then where does it go?
a) directly underground
b) septic tank
c) river or lake
d) water treatment plant

Which is not a type of chemical pollution?
a) Smoke in the air
b) Factory dumping toxic waste
c) animal waste runoff
d) Petroleum waste

The pH of pure water is
a) 5
b) 7
c) 9
d) 14

Acid rain often originates in which area:
a) agricultural
b) neighborhoods
c) industrial
d)

Water pollution that is specific and can be identified
a) Point
b) Nonpoint
c) Air pollution
d) Road runoff

Stormwater is treated before returning to a lake or river.
a) False
b) True
c)
d)

The pH of water is a measure of...
a) cleanliness
b) cloudiness
c) hardness
d) acidity

Communities may get their household/drinking water from all of the following except...
a) aquifer
b) lake
c) river
d) ocean

The measure of cloudiness in water is called
a) acidity
b) turbidity
c) hardness
d) cleanliness

Chlorine is often added to
a) kill disease-causing microorganisms
b) soften the water
c) prevent turbidity
d) improve taste of water

Stormwater is treated; wastewater is not.
a) True
b) False
c)
d)

Wastewater is treated before returning to the natural environment.
a) True
b) false
c)
d)

When air is forced through water in the treatment process, this is done because...
a) the air dissolves in the water
b) the air reduces odors like chlorine
c) the help helps sediments settle down.
d)

Freshwater means...
a) water that is clean
b) water that doesn't contain salt
c) water all around us
d)

Which is not an example of non-point pollution
a) oil spills on the road
b) factory smoke
c) gulf oil spill
d) animal waste runoff

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