1) Primary source of light

2) The light that is seen by the human eye

3) The passing of light through some materials

4) The bouncing back of light when it hits an object

5) Objects that allow some light to pass through them

6) Object that do not allow light to pass through them

7) The bending of light as it passes through a different material

8) The taking in of light and not reflecting it back by some materials


Please answer this for me?​