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Review Questions for "Dissolved Oxygen Background Information"
Try answering the following review questions. If you have trouble, all the answers can be found by re-reading the previous section.
- State the amount of oxygen in air compared to the amount dissolved in water.
- What five natural processes increase dissolved oxygen levels?
- What six natural processes decrease dissolved oxygen levels?
- What are the chemical formulae for oxygen and carbon dioxide molecules?
- What three natural processes cause the cycling of oxygen and carbon dioxide?
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