eflection bouncing of light off a shiny surface, like a mirror ??? ??? ??? Renewable Resource a resource that can be replaced or regrown, like a tree ??? ??? ??? Rotation Earth spins on its axis causing day and night, 24 hours ??? ??? ??? Revolution complete orbit around the sun in an elliptical path, takes one year ??? ??? ??? Sedimentary rocks rocks made by layers of sand, mud, or other material