Answer:
As the sun's angle changes, (because of the rotation of the earth) the sun slowly begins to shine more or less sunshine slowly. When sunsets and sunrises occur, the color of the sky changes because the sunshine is starting to fade out or in.
I put it in my own words so you don't have to worry about plagiarism :)
B. a circle graph
circle graphs are the best to show percentages because they’re very easy to look at and get info from
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I’m not sure what the answer is but I hope someone can help you