Explain that industrial waste water may contain organic matter and harmful chemicals.

In the subtopic Waste water treatment, this learning objective focuses on explain that industrial waste water may contain organic matter and harmful chemicals. 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, industrial waste water, organic matter, and harmful chemicals. industrial waste water means waste water produced by industrial processes that may contain organic matter and harmful chemicals. Avoid students often think that all organic matter in industrial waste water is harmful, overlooking that some organic matter can be benign or even beneficial; instead clarify that while industrial waste water may contain harmful chemicals, not all organic matter is harmful; some can be naturally occurring and non-toxic. For exam answers, focus on the types of organic matter and harmful chemicals found in industrial waste water during your revision.