Plate Tectonics

Question 1

Because of intense pressure, the inner core of the Earth is...

Accepted Answer

solid

Question 2

How does sediment that is closer to a mid-ocean ridge compare to sediment that is further away?

Accepted Answer

younger

Question 3

Which letter represents a divergent boundary?

Accepted Answer

B

Question 4

The Shaded area of which graph represents the % of geologic time that's part of the Precambrian

Accepted Answer

C

Question 5

Convection currents of magma in the mantle produce

Accepted Answer

constant tectonic plate movement

Question 6

Which letter on the diagram reprseents a subduction zone?

Accepted Answer

C

Question 7

Wegener's hypothesis of continental drift was confirmed by..

Accepted Answer

sea floor spreading

Question 8

According to Horner and some other palentologists, what caused Dinosaur Extinction?

Accepted Answer

Climate Change followed by an Asteroid Impact

Question 9

Which graph represents precambrean time in comparison to Earth's total age?

Accepted Answer

D

Question 10

Tectonics plates are blocks of

Accepted Answer

lithosphere

Question 11

What is the correct label fo "C" on the diagram?

Accepted Answer

Paleozoic

Question 12

What occurs at a transform fault boundary?

Accepted Answer

two plates slide horizontally past each other

Question 13

A zone where oceanic crust dives beneath continental crust is called a zone of

Accepted Answer

subduction

Question 14

Oceanic crust is_______ than continental crust

Accepted Answer

THINNER AND MORE DENSE

Question 15

Which of the following was NOT a piece of evidence Wegnener found to support his hypothesis?

Accepted Answer

Tracks of continents plowing through ocean floor rock

Question 16

Where do volvanoes tend to form?

Accepted Answer

all of the previous answers

Question 17

The principle of superposition can be used to determine?

Accepted Answer

relative age of these rock layers

Question 18

Tectonic Plates can include

Accepted Answer

oceanic and continental crust

Question 19

In which layer would convection currents occur?

Accepted Answer

D

Question 20

One hypothesis states taht plate movement results from convection currents inthe

Accepted Answer

asthenosphere

Question 21

What info can be determined about Earth's materials inferred by their arrangement in layers?

Accepted Answer

relative densities

Question 22

Which of the following gives evidence for plate tectonics?

Accepted Answer

magnetic alignment of oceanic rock

Questions 22