Imitate the natural paragraphs 4 and 5 of the fourth grade text "Huoshaoyun"

In the early morning, when the sun just comes out, or when the sun is about to set in the evening, the clouds on the horizon are often red, like fire. People call this kind of red cloud flaming cloud, also called morning glow and sunset glow. Sometimes, without clouds, the sky will appear fiery red, which is called burning the sky. Burning clouds are red clouds that appear at sunrise or sunset. Sunset clouds belong to the category of low clouds, which is one of the phenomena of atmospheric change. It often appears in summer, especially around sunset after a thunderstorm, in the west of the sky. Due to the strong evaporation on the ground and the great action of updraft in the atmosphere, the shape of fire clouds is ever-changing. The color of flame clouds is generally red. The appearance of flaming clouds indicates that the period of warm weather, abundant rainfall and vigorous biological growth is coming.