restless earth

Question 1

caldera

Answer 1

a large ridge forming the edge of a supervolcano, where the original cone has either collapsed or been destroyed.

Question 2

conservative plate margin

Answer 2

a plate margin where the tectonic plates are sliding past each other.

Question 3

constructive plate margin

Answer 3

a plate margin where the tectonic plates are moving apart.

Question 4

convection currents

Answer 4

circulating movements of the magma in the mantle caused by the heat of the core.

Question 5

epicentre

Answer 5

the point on the ground directly above the focus of an earthquake.

Question 6

focus

Answer 6

the point of origin on an earthquake.

Question 7

magnitude

Answer 7

the size of an earthquake.

Question 8

oceanic crust

Answer 8

the part of earths crust which is below the oceans.

Question 9

ocean trench

Answer 9

a deep depression on the ocean floor formed at the subduction zones of destructive plate margins.

Question 10

plates

Answer 10

the large pieces of of broken crust that covers the earth.

Question 11

plate margin

Answer 11

boundary between two tectonic plates.

Question 12

predication

Answer 12

forecasting future changes.

Question 13

primary effects

Answer 13

impacts of a natural disaster then that happen immediate or soon after the event.

Question 14

responce

Answer 14

the way in which people react to situation eg. an earthquake.

Question 15

secondary effects

Answer 15

the after effects of a disaster. eg, disaese spreds due to dirty water, loss of economy due to destruction of businesses.

Question 16

subduction

Answer 16

the transformation into magma of a denser tectonic plate as it divers under a less dense plate.

Question 17

supervolcano

Answer 17

a volcano capable of erupting on a much larger scale then normal volcano.

Question 18

tectoic hazards

Answer 18

threats posted by earthquakes, volcanoes, etc.

Question 19

tsunami

Answer 19

huge waves caused by an earthquake under the sea.