Explain why a street looks darker when the sky is cloudy on a bright day.
Answer
Because clouds block sunlight, reducing illumination.
The correct answer is Because clouds block sunlight, reducing illumination. — With less light, the street appears darker to the observer.
Step-by-step solution
- Sunlight reaches the Earth’s surface directly on a clear day.
- When the sky is cloudy, thick cloud layers absorb and scatter the sunlight.
- Less sunlight reaches the street surface.
- With less light, the street appears darker to the observer.
Common mistake: Thinking clouds increase light
Concept tested: Effect of clouds on light intensity
Published · How this solution was prepared and checked
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