+Astronomic Geology+ 2 The earth as a planet, 2. Its satellite, 3. Dependence on the sun, 4. Meteorites, 4. Mass and extent, 6. Geologic activity, 6. A thermal blanket, 7. II. _The Hydrosphere_ 7 Oceanic dimensions, 8. Geologic activity, 8. Chief horizons of activity, 9. III. _The Lithosphere_ 9…
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