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What is the best possible reason why water clarity changed over time from 2.4m in 1990
to 2.7m in 2005 to 1.95m in 2015? (1 point)
There was less pollution from 1990 to 2005, but then pollution increased from 2005 to
2015.
There was more pollution from 1990 to 2005, but then pollution decreased from 2005
to 2015.
There was less pollution from 1990 to 2005, but then pollution decreased from 2005 to
2015.
There was more pollution from 1990 to 2005, but then pollution stayed the same from
2005 to 2015.



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