Identify the type of cloud on the basis of the given characteristics : 1. High, thin, puffy white clouds of ice crystals that look like ripples in the sky. 2. They appear between 20000 feet and 40000 feet above the Earth's surface 3. One of its types is called a 'mackerel sky' because the clouds resemble large fish scales, especially when they are coloured pink at sunset Select the correct answer.
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