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The reddening of the Sun at sunrise and sunset is associated in the chapter with explanation

Question
The reddening of the Sun at sunrise and sunset is associated in the chapter with explanation
the scattering of light by atmospheric particles, similar in principle to the blue-sky
dispersion by prisms in the sky
atmospheric refraction of starlight specifically
a change in the Sun's actual temperature at those times
Answer
the scattering of light by atmospheric particles, similar in principle to the blue-sky
Detailed Explanation
The chapter lists the reddening of the sun at sunrise/sunset alongside the blue sky colour as phenomena arising from the interplay of light with atmospheric particles (scattering).
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