Geo- ground or land

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Across
  1. 3. heat energy that comes from the Earth
  2. 5. a device that measure ground sound waves called seismic waves
  3. 6. a viewpoint of an Earth centered universe
  4. 7. the study of the effects of Earth’s geography on politics and international relations
Down
  1. 1. the solid part of the Earth including crust, mantle, and core
  2. 2. the study of the forces that act on the Earth resulting in motion and deformation
  3. 4. A person who studies Earth and its materials, processes, and history.
  4. 5. hollow rocks that are usually lined with crystals
  5. 6. the study of lands, features, and inhabitants on Earth
  6. 7. the study of Earth’s magnetic field and its properties