Chapter 25.3

Question 1

how can discontinuity be identified

Answer 1

seicimic waves

Question 2

what is a shadow zone

Answer 2

where no seicmic waves have been recorded

Question 3

what is the boundary that makes the density change

Answer 3

discontinuity

Question 4

what is another name for a shadow zones

Answer 4

Dead zones

Question 5

what degrees do shadow zones fall in

Answer 5

105-140

Question 6

is the outer core a solid or liquid

Answer 6

a liquid

Question 7

is the inner core a solid or liquid why ?

Answer 7

a solid due to pressure

Question 8

what is the asthenosphere

Answer 8

the crust in the upper most mantule

Question 9

what mattalice meterials make up thecore

Answer 9

iron nickle

Question 10

is the measure of a fluid resistance to flow

Answer 10

is the measure of a fluid resistance to flow viscosity

Question 11

the chemical compound silicon dioxide/ common ingredient in magma

Answer 11

silica

Question 12

tend to be small and have heights of hundreds of meters and have short eruptions

Answer 12

cinder-cone-volcano

Question 13

are broad flat structures composed of layers upon layers of lava flow

Answer 13

shield volcano

Question 14

are large steep sides often thousands of meters high and tens of km across the base and composed of layers of both lava and ash

Answer 14

composite volcano

Question 15

what is liquid rocks stored in earth called

Answer 15

magma

Question 16

where is the ring of fire located

Answer 16

pacific ocean

Question 17

what forms when techtoinc plates collide along a subduction zone

Answer 17

volcanoes

Question 18

which two locations do volcanic activity occur

Answer 18

mid-Alantic ridge East African rift valley

Question 19

do hot spots ever move

Answer 19

no

Question 20

what are created from hot spots

Answer 20

hawii volcanic islands

Question 21

magma with high viscosity more silica

Question 22

what are the types of liquids that come off a volcano

Answer 22

cabondioxide sofer

Question 23

how are volcanoes classifed

Answer 23

size shape metails and eruption

Question 24

what are the three types of volcanoes

Answer 24

cinder cone,shield,composite

Question 25

’.