9.1-Connecting Planetary Interiors and Surfaces

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Astronomy & Astrophysics

CHAPTER NINE: PLANETARY GEOLOGY 9.1 Connecting Planetary Interiors and Surfaces -the great differences in the present day appearance of the 5 terrestrial planets must be the result of changes that have occurred through time -volcanoes, earthquakes, asteroid or comets slamming into Earth, erosion by wind rain or ice, etc. -Mercury and Moon scars of their battering during the heavy bombardment densely covered by craters -Venus bizarre bulges and odd volcanoes dot the surface of Venus -Mars has the solar systems largest volcanoes and a huge canyon numerous features that appear to have been shaped by running water -Earth similar to all those on the other terrestrial worlds including a unique layer of living organisms that covers almost the entire surface Inside of Terrestrial Planets -our most detailed information comes from seismic waves, vibrations that travel both through Earths interior and along its surface after an earthquake Layering by Density -Core the highest-density material consists primarily of metals such as nickel and iron resides
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