6. the illustration below represents the grand canyon..

List four observations that indicate that a chemical reaction may be taking place

Describe the interaction that occurs between two objects with the same electrical charge.

What energy conversion occurs when a sling shot is used to shoot a rock across the room? (2 points) question 2 options: 1) stored mechanical energy is converted to mechanical energy. 2) stored mechanical energy is converted to radiant energy. 3) gravitational energy is converted to radiant energy. 4) gravitational energy is converted to mechanical energy.