8.9B Plate Boundaries And Features Question Preview (ID: 35660)
A Review Of Tectonic Plate Boundaries And Features.
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When two oceanic plates converge what happens
a) underwater volcanoes that create volcanic islands
b) Underwater mountains
c) one pushes up and becomes a continental crust
d) both stop moving
What features form in ocean ridges
a) Deltas
b) Faults
c) Underwater Mountains and Volcanoes
d) Trenches
How are the Himilayan Mountains forming
a) A tectonic plate moving over a hot spot in the earths core.
b) They have always been there
c) Lave from a rift zone is coming out, cooling and forming growing mountains
d) Two Continental Plates are crashing into eachother
What are island arcs?
a) Islands formed from an ocean ridge in a divergent boundry
b) Islands formed by magma escaping from a fault after an earthquake.
c) A series of volcanic islands in an arc formed from a convergent subduction zone.
d) An island that has broken free from land as a result of weathering and erosion
Where is the crust the most new on our planet
a) In a rift or ridge. As the crust moves away it gets older and older.
b) In a ridge but not a rift
c) In the Himalayan mountains
d) At a subduction zone
Which boundary is found at the Mid Atlantic Ridge
a) Convergent
b) Subduction
c) Divergent
d) Transform
Trenches are the result of what type of boundary
a) Transform
b) Divergent
c) Continental Convergent
d) Subduction
What MUST be present for volcanoes to form
a) Oceanic Crust
b) A fault line
c) Divergent boundary
d) Convergent boundary
Where are underwater volcanoes found
a) at divergent boundaries and the ring of fire
b) At convergent boundaries
c) at transform boundaries
d) there is no such thing
What is sea floor spreading
a) When old crust is destroyed in an ocean ridge
b) When oceanic crust stretches and grows at up to 1 inch per year to allow the earth to grow larger
c) When trenches form from underwater mountains folding
d) When the ocean opens at a divergent boundary and new crust is created from escaping magma
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