Question detail
What is the primary effect of oxides of nitrogen on human health?
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. They improve lung function
- B. They can cause respiratory problems
- C. They enhance blood oxygen levels
- D. They have no effect on health
Answer
The correct option is They can cause respiratory problems. This answer is correct because it matches the approved learning objective to explain that oxides of nitrogen can cause acid rain in the subtopic Properties and effects of atmospheric pollutants.
Explanation
The correct option is They can cause respiratory problems. They can cause respiratory problems is correct because it directly supports the approved learning objective to explain that oxides of nitrogen can cause acid rain. This belongs to the subtopic Properties and effects of atmospheric pollutants 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 Properties and effects of atmospheric pollutants.
Common mistake
Misunderstanding Nitrogen Oxides
Students often confuse oxides of nitrogen with sulfur dioxide when explaining their role in acid rain.
Clarify that oxides of nitrogen, formed from nitrogen and oxygen at high temperatures, specifically contribute to acid rain, while sulfur dioxide comes from burning sulfur impurities in fuels.
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