Polaris directly over head.
Thats the only thing I can think of if you have options I could answer better.
The answer is: [A]: "fresh water" .
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The answer to this question is oil spills for they are the usual cause of marine or aquatic organisms to die for there are factories that dump these in water because it is a way for them to expel the oil from the factories because it is much easier than to have or find a more convenient place for them to dump it. This contributes to water pollution, making aquatic organisms to die because of its chemical components.
