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15
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Where can sludge be put, where it doesn't adversely affect the environment?
In swamps or marshes where there is already bacteria breaking down organic material.
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15
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Where are scientists finding "garbage islands"
in the stable centers of gyres
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15
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describe Biomagnification
a small organism ingests a minute amount of toxin-many of these are eaten by a larger organism,increasing amounts in each trophic level
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15
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What is the technical term for excessive algal growth as a result of nutrient input?
Eutrophication
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monster
Reset all scores!
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fairy
Take points!
5
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25
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fairy
Take points!
5
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25
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baam
Lose 25 points!
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15
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Where does sludge come from?
treated and filtered sewage
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boom
Lose 50 points!
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rocket
Go to first place!
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fairy
Take points!
5
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25
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banana
Go to last place!
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15
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What are fouling organisms?
unwanted organisms that attach themselves to solid surfaces. causing negative effects
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seesaw
Swap points!
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gift
Win 25 points!
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gift
Win 5 points!
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banana
Go to last place!
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15
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Why might marine biologist sink old cars on purpose?
to create new reefs, a hard substrate for corals to grow on
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15
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What causes coral bleaching?
most is caused by a temperature increase of 2 degrees F
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15
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Is all the oil in the ocean caused by man?
no seeps allow oil to get into marine waters.
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15
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Why is sanitizing sewage with chlorine bad?
The chlorine is toxic to many kinds of marine life.
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15
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Name a Chlorinated hydrocarbon
DDT, PCB, dioxins (p477)
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lifesaver
Give 20 points!
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seesaw
Swap points!
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gift
Win 20 points!
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banana
Go to last place!
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15
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What happened to sea birds (brown pelican) that showed that DDT was detrimental to the environment?
drastically reduced birth rate due to soft shells, and it interferes with reproductive enzymes.also effects the liver and nervous system
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