Question detail
Which of the following is a method used in the early stages of sewage treatment?
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. Aerobic digestion
- B. Sedimentation
- C. Screening
- D. Chlorination
Answer
The correct option is Screening. 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 Screening. Screening 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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