dynamic crust

Question 1

shadow zone

Answer 1

An area on the opposite side of the earth from where an earthquake happened that receives no waves because of the refraction of P-waves and absorption of S-waved into the liquid outer core

Question 2

• can travel through liquid and solid
• move fast
• push/pull motion

Answer 2

P-waves

Question 3

• move slow
• can only travel through solid
• shear wave motion

Answer 3

S-waves

Question 4

focus

Answer 4

spot within the earth where an earthquake begins

Question 5

epicenter

Answer 5

spot on the earth’s surface closest to the epicenter

Question 6

fault

Answer 6

crack along which movement takes place

Question 7

associated with convergent plate boundaries

Answer 7

trenches, subduction zones, island arcs, mountain ranges

Question 8

associated with transform plate boundaries

Answer 8

shallow earthquakes

Question 9

oceanic crust is

Answer 9

thinner & denser

Question 10

in _____ oceanic crust is _____ because it is ____

Answer 10

subduction zones forced down more dense

Question 11

subduction zones

(____ crust and ___ crust)

Answer 11

oceanic crust and continental crust

Question 12

collision zones

define entirely

Answer 12

continental crust and continental crust. Both plates have the same density and therefore crumple as they collide

Question 13

mountains and earthquakes

caused by

Answer 13

collision zones

Question 14

volcanoes, mountains, earthquakes, and trenches

are caused by

Answer 14

subduction zones

Question 15

island arc

(___ crust ___ crust)

Answer 15

oceanic crust and oceanic crust

Question 16

volcanic islands, earthquakes, and trenches

Answer 16

island arc

Question 17

hot spots

Answer 17

magma rises from the mantle and forces its way through the lithosphere, forming a chain of volcanoes

Question 18

deformations

Answer 18

when plates interact, rocks are exposed to intense pressure which causes deformation

layers are always laid down horizontally; of they are observed in any other position you can infer that deformation has taken place

Question 19

the discovery of marine fossils in high mountains is evidence of

Answer 19

crustal uplifts