Which of the following statements is not true?
a. Chemical treatment of sediment can be...
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Biology, 17.04.2020 16:42 heggestade
Which of the following statements is not true?
a. Chemical treatment of sediment can be effective in reducing pollution problems, but it must be repeated every few years
b. Fast-flowing streams are generally better aerated than are lakes
c. An oxygen sag curve describes changes in a stream's dissolved oxygen content along its length below an organic-matter source
d. A body of water is described as "dead" when it contains fatal concentrations of toxic chemicals
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