The sky is blue because the particle in the air absorbs all other color and reflects the shade of blue.
Sun light shines "white" light. This white light is made up of all of the colors in the light spectrum. These colors are either reflected or absorbed by everything. If you shirt is chartreuse, it is absorbing all of the other colors and reflecting the specific shade of chartreuse.
By these means, the dust particle in the air absorb all of the colors except for that particular shade of blue which it reflects.
This is also why when the clouds block out the sun, things turn duller shades of color. If a certain amount of light cannot reach something, it turns a duller color OR black and white.
Sun light shines "white" light. This white light is made up of all of the colors in the light spectrum. These colors are either reflected or absorbed by everything. If you shirt is chartreuse, it is absorbing all of the other colors and reflecting the specific shade of chartreuse.
By these means, the dust particle in the air absorb all of the colors except for that particular shade of blue which it reflects.
This is also why when the clouds block out the sun, things turn duller shades of color. If a certain amount of light cannot reach something, it turns a duller color OR black and white.