Question detail
What is the primary benefit of improving energy efficiency in relation to carbon footprints?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Carbon dioxide and methane as greenhouse gases
Question
- A. It increases energy consumption
- B. It reduces the total amount of greenhouse gases emitted
- C. It has no effect on carbon footprints
- D. It increases the carbon footprint
Answer
The correct option is It reduces the total amount of greenhouse gases emitted. This answer is correct because it matches the approved learning objective to describe how improving energy efficiency can reduce carbon footprints in the subtopic The carbon footprint and its reduction.
Explanation
The correct option is It reduces the total amount of greenhouse gases emitted. It reduces the total amount of greenhouse gases emitted is correct because it directly supports the approved learning objective to describe how improving energy efficiency can reduce carbon footprints. This belongs to the subtopic The carbon footprint and its reduction within Carbon dioxide and methane as greenhouse gases, 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 The carbon footprint and its reduction.
Common mistake
Misunderstanding Energy Efficiency
Students often confuse energy efficiency with energy conservation, thinking they are the same.
Clarify that energy efficiency refers to using less energy to provide the same service, while energy conservation involves reducing energy use altogether.
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