Question detail
Which of the following statements about particulates is true?
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. Particulates are only harmful in large quantities
- B. Particulates can cause respiratory problems even at low concentrations
- C. Particulates are beneficial for human health
- D. Particulates do not affect air quality
Answer
The correct option is Particulates can cause respiratory problems even at low concentrations. This answer is correct because it matches the approved learning objective to describe particulates as solid particles that can cause respiratory problems in the subtopic Properties and effects of atmospheric pollutants.
Explanation
The correct option is Particulates can cause respiratory problems even at low concentrations. Particulates can cause respiratory problems even at low concentrations is correct because it directly supports the approved learning objective to describe particulates as solid particles that can cause respiratory problems. 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 Particulates
Students often confuse particulates with gases, thinking they are the same type of pollutant.
Emphasize that particulates are solid particles, while gases are in a different state of matter and have different properties.
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