Explain why urban lifestyles and industrial processes produce waste water that needs treatment.

In the subtopic Waste water treatment, this learning objective focuses on explain why urban lifestyles and industrial processes produce waste water that needs treatment. Within Using the Earth's resources and obtaining potable water, students should explain this idea in the exact curriculum context rather than as an isolated fact. Approved keywords for this objective include waste water. waste water means water that has been used in some way and contains contaminants, requiring treatment before release into the environment. Avoid students often confuse the sources of waste water, thinking it only comes from domestic use rather than also from industrial processes; instead emphasize that waste water is produced from both urban lifestyles and industrial processes, and provide examples of each. For exam answers, review how urban lifestyles and industrial processes contribute to waste water production.