Question detail
What effect does carbon monoxide have 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. It increases oxygen levels in the blood.
- B. It reduces the ability of blood to carry oxygen.
- C. It causes respiratory problems.
- D. It leads to acid rain.
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 distinguish carbon dioxide as a greenhouse gas from pollutants such as carbon monoxide, sulfur dioxide, oxides of nitrogen and particulates 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 distinguish carbon dioxide as a greenhouse gas from pollutants such as carbon monoxide, sulfur dioxide, oxides of nitrogen and particulates. 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
Confusing Carbon Dioxide with Pollutants
Students often confuse carbon dioxide, which is a greenhouse gas, with pollutants like carbon monoxide and sulfur dioxide.
Remember that carbon dioxide is classified as a greenhouse gas, while carbon monoxide, sulfur dioxide, and oxides of nitrogen are considered pollutants that can harm the environment and human health.
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