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marta [7]
3 years ago
13

Pleaseeee help mee :')

Biology
2 answers:
leonid [27]3 years ago
6 0

Answer:

sea floor spreading occurs at mid ocean ridges

goldenfox [79]3 years ago
3 0

Answer:

As given below

Explanation:

<em>1. mid-ocean ridges </em>

<em>2. as the plates slip past each other at these boundaries. </em>

<em>3. wide dome shape and thick lava. </em>

<em>4. An oceanic crust is subducted under the continental crust. </em>

<em>5. the continents were once together as the one supercontinent. </em>

  • Thus due to the seafloor spreading the formation of new plates is done from the mid-oceanic crust.
  • The transform fault is the margin that is moving back and forwards direction in dextral motion and hence this boundary is prone to earthquakes and volcanic eruptions and floods.
  • Cinder cone and stratovolcanoes have a high density of lava and have a wide shaped dome. A trench is formed due to the collapse of a plate of lighter mass with that f heavier mass which sinks below and this then brings into the mantel and subduction takes to form a deep trench.
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