Question detail
What human activity significantly contributes to methane emissions from landfill sites?
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. Planting trees
- B. Burning fossil fuels
- C. Improper waste disposal
- D. Using renewable energy
Answer
The correct option is Improper waste disposal. This answer is correct because it matches the approved learning objective to explain how landfill sites can release methane from decomposition in the subtopic Human activities which contribute to an increase in greenhouse gases in the atmosphere.
Explanation
The correct option is Improper waste disposal. Improper waste disposal is correct because it directly supports the approved learning objective to explain how landfill sites can release methane from decomposition. This belongs to the subtopic Human activities which contribute to an increase in greenhouse gases in the atmosphere 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 Human activities which contribute to an increase in greenhouse gases in the atmosphere.
Common mistake
Misunderstanding Methane Release
Students often think that landfill sites only produce carbon dioxide and do not realize that methane is also released during decomposition.
Emphasize that methane is produced as organic waste decomposes anaerobically in landfill sites, highlighting the role of decomposition in methane emissions.
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