Question detail
What is the primary purpose of treating waste water?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Using the Earth's resources and obtaining potable water
Question
- A. To make it safe for drinking
- B. To remove harmful substances before release into the environment
- C. To increase its temperature
- D. To add nutrients for plants
Answer
The correct option is To remove harmful substances before release into the environment. This answer is correct because it matches the approved learning objective to interpret information about waste water treatment processes in the subtopic Waste water treatment.
Explanation
The correct option is To remove harmful substances before release into the environment. To remove harmful substances before release into the environment is correct because it directly supports the approved learning objective to interpret information about waste water treatment processes. This belongs to the subtopic Waste water treatment within Using the Earth's resources and obtaining potable water, so the explanation must stay tied to that curriculum context. The other options are incorrect because they either do not answer this learning objective, use a vague statement, or move away from Waste water treatment.
Common mistake
Misunderstanding Waste Water Treatment Steps
Students often confuse the stages of waste water treatment, thinking that all processes happen simultaneously rather than sequentially.
Review the specific stages of waste water treatment, such as screening, sedimentation, and biological treatment, and understand their order and purpose.
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