I find you bright, intelligent and valuable. And I'd like to hope those are the traits of your personality and not your glamor. But all jokes aside, that is useful to know.
Define fresh water sources -- does the water have to be of a certain purity? We would be hard pressed to find something without the slightest bit of pollution.
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Define fresh water sources -- does the water have to be of a certain purity? We would be hard pressed to find something without the slightest bit of pollution.