Question detail
Why might assigning numerical values to pollutant effects involve value judgments?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Life cycle assessment and recycling
Question
- A. Because all pollutants have the same impact
- B. Because the effects of pollutants can vary based on context
- C. Because numerical values are always objective
- D. Because pollutants are not measurable
Answer
The correct option is Because the effects of pollutants can vary based on context. This answer is correct because it matches the approved learning objective to explain that water use, resource use, energy use and some wastes can often be quantified in an LCA in the subtopic Life cycle assessment.
Explanation
The correct option is Because the effects of pollutants can vary based on context. Because the effects of pollutants can vary based on context is correct because it directly supports the approved learning objective to explain that water use, resource use, energy use and some wastes can often be quantified in an LCA. This belongs to the subtopic Life cycle assessment within Life cycle assessment and recycling, 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 Life cycle assessment.
Common mistake
Quantifying Environmental Impacts
Students often confuse the types of resource use that can be quantified in an LCA, thinking that all environmental impacts can be measured numerically.
Focus on understanding that only specific aspects like water use, resource use, energy use, and certain wastes are typically quantified in an LCA.
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