Other questions in this quiz

2. What are created soon as a result of submarine volcanic eruptions

  • Seamounts
  • Islands
  • Island Arcs

3. What happens to older inactive islands

  • Get attcked by marine erosion and fall below sea level as seamounts
  • Nothing
  • They eventually fall into the sea

4. How are new volncaic islands formed

  • Plume is continous so eruptions are frequent, seamounts eventually build up enough to reach the surface
  • Plates rising from under the sea
  • Build up of debris

5. Why is magma created as the plume rises

  • Due to a fall in pressure (decompression melting)
  • The lithosphere melts
  • Its already there

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