Dissolved Oxygen : The Effects of Low Oxygen

Review Questions for "The Effects of Low Dissolved Oxygen Levels"

Try answering the following review questions. If you have trouble, all the answers can be found by re-reading the previous section.

  1. What five human activities can lower dissolved oxygen levels?

  2. What two organisms can be found in water with high concentrations of dissolved oxygen?

  3. What effect do low oxygen concentrations have on fish?

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