Caves and their features form when rainwater follows the cracks or joints in the rock material, usually limestone or dolomite. The rainwater combined with carbon dioxide forms a weak acid called carbonic acid. This weak acid once in contact with the limestone begins to dissolve the limestone. This process slowly creates larger and larger crack and joints.
A service contract inventory assists an agency in better understanding how contracted services support the mission and operations and whether the contractorsâ skills are utilized in an appropriate manner.
Elements of a Contract Number. Reference: 1. DFARS 204.70 UNIFORM PROCUREMENT INSTRUMENT IDENTIFICATION NUMBERS (PIIN) Positions 1 through 6. The first of the six positions, in upper case letters, identify the department/agency and office issuing the instrument.