GEOSPHERE

• Geosphere


  The solid part of the Earth, including the crust, mantle, and core
• Continental crust

  Thicker and predominantly felsic in composition, richer in silica
• Mantle

  Mostly solid but with more malleable regions that contribute to tectonic activity
• Transition Zone

  Prevents large exchanges of material between the upper and lower mantle
• Geodynamo

  The process through which a rotating, convecting, and electrically conducting fluid can maintain a magnetic field over astronomical time scales
• The geosphere includes the rocks, minerals, and soil of the crust, the mantle formed mostly of magma, and a very hot metallic core- TRUE
• The word "geosphere" comes from the Greek words "geo" meaning Earth and "sphaira" meaning ball or sphere- TRUE
• The mantle is the mostly solid bulk of Earth's interior- TRUE
• The mantle is made of a mixture of different kinds of solid rocks and minerals- FALSE
• The lithosphere is the denser, weaker layer beneath the lithospheric mantle- FALSE
• Sedimentary rocks are formed primarily through processes involving heat and cooling- FALSE