In this way, the blue light gets scattered all around the sky. When you look up, some of this blue light reaches your eyes from all over the sky. Since you see blue light from everywhere overhead, the sky looks blue. In space, there is no air. Because there is nothing for the light to bounce off, it just goes straight.
Plants make their own food.
They take water from the ground through their roots. They take carbon dioxide from the air. They turn water and carbon dioxide into food using sunlight and chlorophyll. Chlorophyll is green. It gives leaves their green color.