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Author Question: What is produced by the combination of thermal and compositional convection within Earth's liquid ... (Read 53 times)

Hungry!

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on: Jul 13, 2018
What is produced by the combination of thermal and compositional convection within Earth's liquid metallic outer core and Earth's rotation?
 A)iron pyrite
 B)gravity
 C)global wind currents
 D)dipolar magnetism
 E)magnetic field

Question 2

Shorelines experience depositional and erosional processes. List one feature formed by deposition and one feature formed by erosion, and explain how each feature is formed.


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ttt030911

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Reply #1 on: Jul 13, 2018
Answer to Question 1

E

Answer to Question 2

Deposition:
1. beach - form by deposition of sand
2. spit - finger-like projection of beach into a body of water
3. baymouth bar - spit that has completely close off a bay
4. tombolo - spit that extends to an offshore structure like an island or sea stack
5. barrier islands - origin unresolved. They are thought to be formed either by a spit that was cut off from land or as beach ridges that subsided.

Erosion:
1. sea cliffs - produced by wave action, abrasion from sand and gravel, and dissolution of rocks by seawater
2. wave-cut platform - a beveled surface sloping seaward formed by the retreat of a sea cliff
3. marine terrace - a wave-cut platform that is above sea level
4. sea caves - form on opposite sides of a headland
4. sea arch - form when sea caves merge
6. sea stack - form when arch collapses


Hungry!

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Reply 2 on: Jul 13, 2018
:D TYSM

Joy Chen

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

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