Used water is also called--
sewage
wastewater
all of these
can come from human activities or rainwater runoff
________ recover faster and more easily than ________.
none of these
rivers and streams; lakes and reservoirs
rivers; streams
lakes and reservoirs; rivers and streams
common example(s) of groundwater pollutants---
all of these are correct
septic tanks, abandoned wells
agricultural chemicals, runoff
landfills, garbage dumps
Why is groundwater pollution considered a “hidden” threat to human health?
germs and harmful chemicals in groundwater can make us sick
It isn't a threat.
It stays hidden underground.
It is underground.
The rapid growth of algae or cyanobacteria that can cause harm to people, animals, or the local ecology is called an _____.
algal bloom
decomposition
photosynthesis
moss
the contamination of water sources by substances which make the water unusable for drinking, cooking, cleaning, swimming, and other activities.
climate change
point source
air pollution
water pollution
Is ocean pollution more severe in deeper waters or coastal waters?
coastal waters
deeper ocean water
Using fewer pesticides and fertilizers can reduce the impact of
non point source pollution
point source pollution
CO2 emissions
air pollution
What process is responsible for algal “blooms”?
eutrophication
hurricanes
photosynthesis
climate change
Enforcing pollution and waste management laws can reduce the impact of
point source pollution
climate change
non point source pollution
According to the Environmental Protection Agency, what percentage of rivers, lakes, and estuaries are too polluted for fishing or swimming?
70
40
20
50
How have people been affected by coastal water pollution?
economic impacts
destroys food sources
all of these
health problems
How many gallons of oil were spilled into the Gulf of Mexico when the Deepwater Horizon oil rig exploded in 2010
134 million
134 thousand
134
What is the leading source of water pollution?
oil spills
industry
non-point sources
trash