c7ho8leahranCitaMayM c7ho8leahranCitaMayM

15-06-2016
Physics

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The principle characteristic distinguishing marine and freshwater ecosystems is _______. a. temperature b. presence of corals c. presence of fish d. dissolved salt

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JoshEast JoshEast

15-06-2016

The answer would be dissolved salt. Its the presence of saltwater in marine and the absence of it in freshwater that makes the big difference.

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Аноним Аноним

15-06-2016

d.
hope this helps!!!

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