plate boundary

Question 1

example of destructive plates continental - oceanic

Answer 1

Nazca and south american plate

Question 2

what happens at a destructive continental plate ====> oceanic plate

Answer 2

denser oceanic plate subducted under continental plate into the mantle

Question 3

what dies subduction cause

Answer 3

build up of magma and creates pressure - causing the magma to force itself through the continental plate creating composite volcano

Question 4

destructive continetal -continental example

Answer 4

eurasian and indo australian plate

Question 5

what happnes at destructive continetal- continental plates

Answer 5

converge at collision zone

no subduction and creates shallow focus earthquakes

Question 6

destructive oceanic -oceanic examle

Answer 6

pacific plate - phillipine plate

Question 7

what happens at oceanic oceanic destructive plate boundaries

Answer 7

heavier plate subducted under lighter plate

Question 8

what forms at oceanic oceanic destructive plate boundaries

Answer 8

underwater volcanoes that create island arcs and deep ocean trench

Question 9

constructive plate boundary oceanic -oceanic example

Answer 9

mid atlantic ridge

Question 10

what happens at constructive oceanic oceanic plate boundary

Answer 10

convection currents pull plate apart, magma rises in the gap, cools and creates new land - sea floor spreading

Question 11

example continental - continetal constructive plat boundary

Answer 11

east african ridge

Question 12

what does plates widening at different rates cause

Answer 12

transform faults

Question 13

what land forms are created at constructive continental - continental plate boundary

Answer 13

rift valleys volcanoes

Question 14

example of conservative plate boundary

Answer 14

san andreas fault

Question 15

what happens at conservative palte boundary

Answer 15

two plates slide past each other and high levels of friction creates strain on faults releasing energy in earthquake form