Question detail
What is released into the atmosphere when fuels are combusted?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Common atmospheric pollutants and their sources
Question
- A. Oxygen
- B. Atmospheric pollutants
- C. Water vapor
- D. Nitrogen
Answer
The correct option is Atmospheric pollutants. This answer is correct because it matches the approved learning objective to explain that combustion of fuels can release atmospheric pollutants in the subtopic Atmospheric pollutants from fuels.
Explanation
The correct option is Atmospheric pollutants. Atmospheric pollutants is correct because it directly supports the approved learning objective to explain that combustion of fuels can release atmospheric pollutants. This belongs to the subtopic Atmospheric pollutants from fuels within Common atmospheric pollutants and their sources, 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 Atmospheric pollutants from fuels.
Common mistake
Misunderstanding Combustion Products
Students often confuse the products of complete combustion with those of incomplete combustion, thinking that all combustion produces only carbon dioxide and water.
Emphasize that incomplete combustion can produce carbon monoxide and soot, in addition to carbon dioxide and water.
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