5. O-O convergence

Question 1

1.

Answer 1

2 oceanic plates subduct & collide –> denser oceanic plate subduct beneath less dense oceanic plate

Question 2

2.

Answer 2

deep oceanic trench formed at points of subduction

Question 3

3.

Answer 3

subducted beneath oceanic plate –> mantle material above melts –> forms magma

Question 4

4.

Answer 4

magma rises through crusts, forms volcano –> chain/arc of islands formed

Question 5

5.

Answer 5

earthquakes occur at boundary of plates –> friction created between moving rock masses when plate subducts under another

Question 6

e.g.

Answer 6

Marina Trench, Pacific Plate & Philippine Plate