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Author Question: What process explains how hydrothermal vents are created? a. Fracture zones b. Conduction c. ... (Read 78 times)

Brittanyd9008

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on: Aug 22, 2018

What process explains how hydrothermal vents are created?
  a. Fracture zones
  b. Conduction
  c. Convection
  d. Pressure



Question 2

____ are likely to be found in subduction zones.
  a. Abyssal hills
  b. Submarine canyons
  c. Mid-ocean ridges
  d. Trenches



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josephsuarez

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Reply #1 on: Aug 22, 2018
Answer to Question 1

ANS: C
It is believed that water descends into cracks and crevices along the ridges of the seafloor. The water
then makes contact with the rocks. Then, chemically active, superheated water dissolves minerals and
gases are released though these hydrothermal vents via convection. Information can be found in the
section The Topography of Deep-Ocean Basins Differs from That of the Continental Margins



Answer to Question 2

ANS: D
Trenches and island arcs are expected at areas where converging ocean crust subducts. Trenches are
arc-shaped depressions in the deep-ocean floor. Information can be found in the section The
Topography of Deep-Ocean Basins Differs from That of the Continental Margins.



Brittanyd9008

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Reply 2 on: Aug 22, 2018
Gracias!

tkempin

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Reply 3 on: Yesterday
:D TYSM

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