Earthquakes, Continental Drift, and Plate Tectonics

Question 1

Plate boundary where 2 plates slide past one another w/o creation or destruction of lithosphere

Accepted Answer

transform

Question 2

Earth's properties consist of its

Accepted Answer

all of the above

Question 3

Some scientists believe that plate motion is mostly caused by

Accepted Answer

mantle convection

Question 4

The type of plate boundary where destruction of lithosphere occurs is a

Accepted Answer

convergent boundary

Question 5

A section of the rock sequence in parts of S America and S Africa is nearly identical

Accepted Answer

true

Question 6

*A big hazard in the New Madrid zone is

Accepted Answer

all of the above

Question 7

Surface waves

Accepted Answer

all of the above

Question 8

Boundary that separates earths crust from mantle below & where seismic waves speed up at mantle

Accepted Answer

Mohorovicic (Moho)

Question 9

Alternating stripes of stronger and weaker magnetism occur because of polarity reversals & SFS

Accepted Answer

true

Question 10

The earth's crust is made up of

Accepted Answer

both b and c

Question 11

Reflection and refraction cannot occur together

Accepted Answer

false

Question 12

A deep, stepped valley in some ridges that forms when lithosphere drops down along faults is

Accepted Answer

the central rift zone of normal faults

Question 13

The majority of earthquake's are concentrated at

Accepted Answer

Circum-Pacific Belt

Question 14

The distribution of plants, animals, and prehistoric climate zones shows that

Accepted Answer

continents were once joined but moved to different locations

Question 15

The farther away from an oceanic ridge you go, the oceanic crust is

Accepted Answer

older in age

Question 16

Breaking apart of lithosphere to form rift valleys that turn into ocean basins marks the

Accepted Answer

breakup of the supercontinent

Question 17

The scientific study of waves (from earthquakes) and the Earth's interior is

Accepted Answer

seismology

Question 18

Layer of earth that is weak, deformable and flows, and allows plates to move is the

Accepted Answer

aesthenosphere

Question 19

The device that records seismic waves is called a

Accepted Answer

seismometer

Question 20

From 200 to 300 mya, all land was joined together as one supercontinent called

Accepted Answer

Pangaea

Question 21

Tsunami's are the most noticeable and travel the slowest in deep water

Accepted Answer

false

Question 22

The type of body wave that arrives first and moves by compression and stretching the material

Accepted Answer

p wave

Question 23

The rigid, outermost layer of earth that makes up the crust and uppermost mantle is the

Accepted Answer

lithosphere

Question 24

Wegener proposed CDT and suggested that the continents fit together like giant puzzle pieces

Accepted Answer

true

Question 25

Plotting past continental positions from 200 my old rocks shows that

Accepted Answer

the continents were joined as one supercontinent, Pangaea

Question 26

Changes in density, elasticity, and physical state of material at a boundary may cause waves to

Accepted Answer

both a and b

Question 27

Oceanic-oceanic convergence (1 oceanic plate sinks) at subduction zones produces what features?

Accepted Answer

volcanic island arcs

Question 28

The India-Asia collision that led to the formation of the Himalayan Mountains is a result of

Accepted Answer

continent-continent convergence/collision

Question 29

Oceanic-continental convergence (oceanic plate sinks) at subduction zones produces what?

Accepted Answer

continental volcanic arc

Question 30

The plate boundary between the NA and Pacific plates where the San Andreas fault lies is a

Accepted Answer

transform plate boundary

Question 31

The zone where 2 plates collide and one goes beneath the other is called

Accepted Answer

subduction

Question 32

ONLY speed of seismic waves is affected by density and elasticity changes of material

Accepted Answer

false

Question 33

The amount of energy released during an earthquake is called its

Accepted Answer

magnitude

Question 34

During a tsunami, the entire water column is displaced as sea floor is interrupted

Accepted Answer

true

Question 35

Natural or man-made elastic waves that travel through the earth are called

Accepted Answer

seismic waves

Question 36

A boundary in earth where seismic waves change their speed and/or direction is called a

Accepted Answer

seismic discontinuity

Question 37

Earthquakes, deep ocean trenches, subduction zones, volcanic arcs are associated with

Accepted Answer

convergent plate boundaries

Question 38

The seismic boundary with most extreme effect on seismic wave velocity

Accepted Answer

core-mantle boundary (s waves do not cross, p waves slow)

Question 39

"Passive rafting" means that the continents go where oceanic lithosphere goes due to its growth

Accepted Answer

true

Question 40

Bending of seismic waves causing them to go in a different direction is called

Accepted Answer

refraction

Question 41

Glacial deposits from 300 mya

Accepted Answer

*show south continents & India were combined into S icesheet

Question 42

The core (having the most mass per volume on Earth) is composed of

Accepted Answer

mostly iron and some nickel

Question 43

Speed and direction of body waves is affected by

Accepted Answer

all of the above

Question 44

Mountainous areas are prone to what during earthquakes due to unstable slopes and titled rocks

Accepted Answer

landslides and rockslides

Question 45

Earthquakes are caused by the sudden release of elastic strain energy stored in rocks over time

Accepted Answer

elastic rebound theory

Question 46

The type of body wave that can travel through solids, liquids, and gases

Accepted Answer

p wave

Question 47

The type of body wave that can only travel through solids (because of elasticity)

Accepted Answer

s wave

Question 48

* Structure involved in causing earthquakes in the New Madrid Zone is named the

Accepted Answer

reel foot rift

Question 49

Structures built on loose materials are less intensely shaken & sustain less damage

Accepted Answer

false

Question 50

Volcanism, magma intrusion to form new lithosphere, and widening of ocean as plates pull apart

Accepted Answer

are components of seafloor spreading at ocean ridges

Question 51

Paleomagnetic evidence (for continental drift) of magnetism preserved in minerals shows

Accepted Answer

continents were at different locations when the rock formed

Question 52

The Richter Scale

Accepted Answer

all of the above

Question 53

Fire is a major cause of property and death during earthquakes because

Accepted Answer

both a and b

Question 54

When materials start to behave as liquids, causing the ground to lose rigidity is called

Accepted Answer

spontaneous liquefaction

Question 55

The outermost part of the earth is divided into rigid, interlocking plates that move & interact

Accepted Answer

is known as plate tectonic theory

Question 56

Nature of the soil and bedrock is NOT a contributing factor for collapse of man-made structures

Accepted Answer

False

Question 57

When seismic waves bounce off a boundary and indicate depth is called

Accepted Answer

reflection

Question 58

The plate boundary where 2 plates pull apart is called a

Accepted Answer

divergent boundary

Question 59

A seismometer detects waves by using a weight that is relatively stationary during shaking

Accepted Answer

true

Question 60

The type of seismic waves that travel through the Earth's deep interior or parts of it are

Accepted Answer

body waves

Question 61

An earthquake's point of origin underground is the

Accepted Answer

focus

Question 62

Locating an earthquake's epicenter requires

Accepted Answer

data at 3 seismic/recording stations that gives p & s waves

Question 63

A series of natural elastic waves that cause ground motion is called

Accepted Answer

earthquake

Question 64

According to the Mantle Convection Model, heat is not transferred efficiently

Accepted Answer

false

Earthquakes, Continental Drift, and Plate Tectonics

Questions 74

Earthquakes, Continental Drift, and Plate Tectonics

Questions 74