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bugaian bugaian
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11 years ago
Compare and contrast the four major zones of the Earth. Be sure to address the composition, state, thickness and temperature (if applicable) found in each zone.
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11 years ago
Biosphere- includes life, atmosphere
Lithosphere- includes granite and basaltic plates, the rock is  
brittle, thin
Asthenosphere- Ultra mafic rock(>45% silica) plastic(state) means slightly molten, high temp. causes plate tectonics
Mesosphere- ultramafic rock, due to high pressure not as molten as the asthnosphere, high temp, thickest layer
Core- inner is solid outter is liquid, composed of radioactive material, most common element is iron.
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