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).
The Ribs. The ribs are flat, thin bones that, together with the sternum, make up the ribcage. The ribs provide protection for vital organs in the upper body, including the heart and lungs. The ribs also help to protect major vessels in the upper body. There are twelve pairs of ribs, accounting for 24 total rib bones.