Why is the Sky Blue?

The sky is blue for two reasons. One it is the one that is the brightest out of all the colors and two it absorbs other colors. They sky is blue because it absorbs all of the colors it can get from a rainbow. Okay so the first thing it does for the sky to get blue is that it absorbs all of the colors. The colors that it can absorb are red, orange, yellow, green, indigo, and violet. In between in those colors, the blue is the one that stands out. It stands out of all of the colors. The sun makes it look blue and that is why we see the sky blue. We see the sky blue because our brain sees that the color blue stands out more than the other colors.
        The other reason why the sky is blue because it is the brightest color out of all of the colors. It is the brightest out of all of the colors because our brain tells us to see it like that. If our brain didn't tell us how to see the sky blue, we would see the sky another different color. The blue stands out and that is how we see the sky very blue. Also the sky is blue because the sun makes the sky absorb all of the colors so we can see it like that. 
        It happens with other things too. For example, we see the grass green. We see the grass green because the green color absorbs all of the other colors. The colors it absorbs are red, orange, yellow, blue, indigo, and violet. the green is the one that stands out. This is why the sky is blue.