Question detail
Why is it important to treat water from different sources differently?
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 ensure all water tastes the same
- B. To meet specific safety standards based on contaminants
- C. To reduce the cost of water treatment
- D. To increase the amount of water available
Answer
The correct option is To meet specific safety standards based on contaminants. This answer is correct because it matches the approved learning objective to explain why the treatment required depends on the available water source and local conditions in the subtopic Potable water.
Explanation
The correct option is To meet specific safety standards based on contaminants. To meet specific safety standards based on contaminants is correct because it directly supports the approved learning objective to explain why the treatment required depends on the available water source and local conditions. This belongs to the subtopic Potable water 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 Potable water.
Common mistake
Understanding Water Treatment Needs
Students often confuse the treatment methods required for different water sources, thinking they are the same regardless of local conditions.
Do not treat this as a general statement about water. Instead, answer by clearly linking the correction to explain why the treatment required depends on the available water source and local conditions in Potable water. This keeps the response inside Using the Earth's resources and obtaining potable water and prevents a vague or off-topic GCSE answer. The mistake to avoid is: students often confuse the treatment methods required for different water sources, thinking they are the same regardless of local conditions.
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