The solid particles are, consequently, responsible for the orange and red colours at sunset and sunrise and for the length of dawn (the first appearance of light in the sky before sunrise) and twilight (the soft glowing light from the sky when the sun is below the horizon, caused by the reflection of the sun’s rays by the atmosphere. Dusk: the darker stage of twilight.)
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Atmosphere: Role, Structure & Composition | PMF IASyers of the atmosphere may even have fragments of meteors which got burnt up in the atmosphere. These solid particles perform the function of absorbing, reflecting and scattering the radiation. <span>The solid particles are, consequently, responsible for the orange and red colours at sunset and sunrise and for the length of dawn (the first appearance of light in the sky before sunrise) and twilight (the soft glowing light from the sky when the sun is below the horizon, caused by the reflection of the sun’s rays by the atmosphere. Dusk: the darker stage of twilight.). The blue colour of the sky is also due to selective scattering by dust particles. Some of the dust particles are hygroscopic (i.e. readily absorbing moisture from air) in character, an Summary
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