Question detail
What is the primary reason carbon monoxide is considered toxic?
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. It causes acid rain.
- B. It reduces the ability of blood to carry oxygen.
- C. It contributes to global warming.
- D. It is a greenhouse gas.
Answer
The correct option is It reduces the ability of blood to carry oxygen.. This answer is correct because it matches the approved learning objective to interpret information about fuel combustion to identify likely pollutants in the subtopic Atmospheric pollutants from fuels.
Explanation
The correct option is It reduces the ability of blood to carry oxygen.. It reduces the ability of blood to carry oxygen. is correct because it directly supports the approved learning objective to interpret information about fuel combustion to identify likely 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
Misidentifying Pollutants
Students often confuse carbon dioxide with pollutants like carbon monoxide and sulfur dioxide, thinking they are all the same.
Remember that carbon dioxide is a greenhouse gas, while carbon monoxide and sulfur dioxide are specific pollutants resulting from incomplete combustion and fuel impurities.
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