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 rib cage is the part of the axial skeleton that protects the vital organs within the thoracic (chest) cavity and the upper part of the abdominal cavity. It is made up of the ribs that articulate at the back with the vertebral column (vertebrae) and at the front with the breastbone (sternum).