solar energy is... the sun's rays (solar radiation) that hit the earth is the definition of solar energy. Two categories passive and active. Passive: Passive solar produces heat and provides lighting for structures.
Retirement Insurance Benefits. Retirement Insurance Benefits (abbreviated RIB) or old-age insurance benefits are a form of social insurance payments made by the U.S. Social Security Administration paid based upon the attainment of old age (62 or older).
rib (plural ribs) 1  Any of a series of long curved bones occurring in 12 pairs in humans and other animals and extending from the spine to or toward the sternum. 2  A part or piece, similar to a rib, and serving to shape or support something. 3  A cut of meat enclosing one or more rib bones.