There are six commonwealth-owned parks in Bucks County: 1  Five are owned and operated by the Pennsylvania Bureau of State Parks, part of the Pennsylvania Department of Conservation and Natural Resources (DCNR). 2  Bucks County Parks and Recreation operates an 18-bed youth hostel in the Nockamixon State Park Weisel estate.
lithosphere definition: Lithosphere is defined as the rock and crust surface that covers the Earth. (noun) An example of lithosphere is the Rocky Mountain range in western North America....
RADIATION â when heat is transferred through EMPTY SPACE (in the form of electromagnetic waves) RECALLâ¦â¦ LITHOSPHERE = The SOLID, RIGID outer portion of the Earth that is composed of the CRUST and UPPERMOST MANTLE. ASTHENOSPHERE = The HOT, SOFT, WEAK, SLOW MOVING portion of the UPPER MANTLE. Lithosphere FLOATS on top of the Asthenosphere