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Author Question: Compare and contrast the thickness of the material that makes up ocean basins and continents and how ... (Read 36 times)

lracut11

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on: Jul 16, 2018
Compare and contrast the thickness of the material that makes up ocean basins and continents and how they sit on the mantle. (Which one sits higher on the mantle and why?)
 
  What will be an ideal response?

Question 2

Express the definition of the Earth system in your own words. What spheres or subsystems are involved?
 
  What will be an ideal response?


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pangili4

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Reply #1 on: Jul 16, 2018
Answer to Question 1

Answer: Continental material is thicker (up to 70 km) but, in spite of that, sits higher on the mantle because it is less dense (2.7 g/cm3). Oceanic material is thinner (averaging at 7 km), but denser (3.0 g/cm3).

Answer to Question 2

Answer: Answers will vary but should include that the four spheres of the Earth are not separate but interact with each other.


lracut11

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Reply 2 on: Jul 16, 2018
Thanks for the timely response, appreciate it

bbburns21

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Reply 3 on: Yesterday
Excellent

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