chapter 25.1 and 25.2

Question 1

who came up with the continental drift hypothesis?

Answer 1

Alfred Wegener

Question 2

what was evidence he came up with to back up his hypothesis?

Answer 2

1. fossils from different continents matching up
2. coast lines matched like puzzle pieces
3. mountain ranges matched up with same rock type and ages

Question 3

what was the name of the super continent?

Answer 3

Pangaea

Question 4

who came up with Seafloor Spreading Hypothesis?

Answer 4

Harry Hess

Question 5

how did he discover Seafloor Spreading?

Answer 5

by using sonar

Question 6

Hess discovered what?

Answer 6

Hess discovered the mid-ocean ridge

Question 7

what are the types of plate boundaries?

Answer 7

Divergent boundary, convergent boundary, and transform boundary

Question 8

how do divergent plate boundary

Answer 8

1. MOR(oceanic crust)

2. East African Rift(continental crust)

Question 9

how do transform plates move

Answer 9

the slide side by side to each other

Question 10

which earthquake boundaries have shallow earthquakes

Answer 10

divergent and transform plat boundaries

Question 11

which boundaries have deep earthquakes

Answer 11

convergent plate boundaries

Question 12

what are the types of stress that cause rocks to move

Answer 12

compression, tension, shear, torsion

Question 13

what are the two types of deformation

Answer 13

elastic and plastic deformation

Question 14

what happens to the material when elastic deformation happens

Answer 14

it occurs when a material, such as a rock, deforms as stress is applied, but returns to its original shape

Question 15

what happens during plastic deformation

Answer 15

its when a material deforms, or changes shape, as a stress is applied and remains in its new shape

Question 16

what type of seismic wave is the fastest

Answer 16

p-wave( primary wave)

Question 17

what type of wave is a p-wave

Answer 17

it is a compression wave

Question 18

what type of materials can p-waves pass through

Answer 18

walls, water, underground

Question 19

what type of wave is a s-wave

Answer 19

its a transverse wave

Question 20

what types of materials can an s-wave pass through

Answer 20

only solids

Question 21

which wave does the most damage

Answer 21

surface waves do the most damage

Question 22

which elements make up the core

Answer 22

iron and nickel

Question 23

which elements make up the core

Answer 23

iron and nickel