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it is sometimes better to leave an oil slick alone because its too expensive to clean up
a) true
b) false
c)
d)
radioactive materials primarily get into the oceans
a) from nuclear accidents
b) by intentional dumping
c) from uranium meteors
d) none of the answers are correct
despite the 1975 and 1983 bans on dumping radioactive material at sea, they remain a concern because
a) so much was dumped prior to the bans
b) the containers the waste was dumped in are leaking
c) nuclear powered vessels continue to dump their waste
d) all of the answers are correct
so far the radioactive material
a) has had no noted widespread effects on marine life
b) has caused extensive genetic damage to fish
c) has caused one giant lizard named Godzilla
d)
the main environmental concern regarding lost munitions is
a) the leakage of chemical weapons
b) the detonation of unexploded bombs
c)
d)
__________ cause eutrophication
a) HABs (harmful algal blooms)
b) thermal pollution
c) radiation
d) nutrients and fertilizers
in sewage processing, level II treatment
a) removes solids
b) removes solids and pathogens
c) removes solids, pathogens and nutrients
d) removes solids, pathogens, nutrients and toxins
dumping sludge causes environment concerns including
a) eutrophication
b) counter current backflow
c) pathogen resurgence
d) none of the answers are correct
eutrophication harms marine ecosystems by
a) causing HABs (harmful algal blooms)
b) draining rivers of their nutrients
c) raising oxygen levels too high
d) causing fish to grow too big
livestock sewage concerns are the same as human sewage concerns, although sometimes on a larger scale
a) true
b) false
c)
d)
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