Question detail
How do particulates contribute to global dimming?
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. By absorbing heat from the sun.
- B. By reflecting sunlight away from the Earth.
- C. By increasing cloud formation.
- D. By enhancing greenhouse gas effects.
Answer
The correct option is By reflecting sunlight away from the Earth.. This answer is correct because it matches the approved learning objective to explain that particulates can cause global dimming by reflecting sunlight in the subtopic Properties and effects of atmospheric pollutants.
Explanation
The correct option is By reflecting sunlight away from the Earth.. By reflecting sunlight away from the Earth. is correct because it directly supports the approved learning objective to explain that particulates can cause global dimming by reflecting sunlight. 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 behave the same way in the atmosphere.
Remember that particulates are solid particles that can reflect sunlight, while gases like carbon dioxide do not have this property.
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