Internal Energy & Plate Tectonics Starting from the Atmosphere and working your way down to the center of the Earth, lis

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Internal Energy & Plate Tectonics
Starting from the Atmosphere and working your way down to thecenter of the Earth, list and briefly describe the structure of theEarth in terms of its “spheres.”
Describe some examples of isostasy.
What energy sources cause(d) the interior of the Earth to heatup?
What is the age of the Earth?
How is this determined?
What are the differences between brittle, ductile, and elasticbehavior?
What is a Tectonic Plate?
What is “sea-floor spreading,” and what is the evidence forit?
Describe a deep ocean trench. How do they form?
What is the evidence for Plate Tectonics? Explain the concept ofUniformitarianism.