Quiz about Sea Floor

Question 1

Sea-floor spreading begins at the

Accepted Answer

Mid-ocean ridge

Answer

Deep ocean trench

Answer

Continent's edge

Question 2

The oceanic crust is pushed aside on both sides of the

Accepted Answer

Mid-ocean ridge

Answer

Continent's edge

Answer

Deep-ocean trench

Question 3

The oceanic crust _________ when it reaches the continental crust.

Accepted Answer

sinks

Answer

rises

Answer

expands

Question 4

The process that happens at the deep-ocean trench is called...

Accepted Answer

subduction

Answer

sea-floor spreading

Answer

adding material to the ocean floor

Question 5

The land feature that happens when there is subduction is called a...

Accepted Answer

deep-ocean trench

Answer

mid-ocean ridge

Answer

asthenosphere

Question 6

New crust is always formed at the...

Accepted Answer

mid-ocean ridge

Answer

deep-ocean trench

Answer

asthenosphere

Question 7

Older crust is found towards the...

Accepted Answer

Deep-ocean trench

Answer

Mid-ocean ridge

Answer

Asthenosphere

Question 8

What words describe M? choose all

Accepted Answer

mid ocean ridge

Answer

deep ocean trench

Answer

sea floor spreading

Answer

subduction

Question 9

What feature is at C?

Accepted Answer

Deep ocean trench

Answer

Mid ocean ridge

Answer

sea floor spreading

Answer

subduction

Question 10

What is the process happening at R?

Accepted Answer

sea floor spreading

Answer

Deep ocean trench

Answer

mid ocean ridge

Answer

subduction

Question 11

What grows at the divergent boundary?

Accepted Answer

Mid Ocean Ridge

Answer

San Andreas Fault

Answer

Land ridge

Answer

Pacific Ocean

Question 12

What is a divergent boundary?

Accepted Answer

two plates moving away from each other

Answer

two plates moving towards each other

Answer

two plates rubbing side to side

Answer

happens in the lithosphere

Question 13

What is one piece of evidence of seafloor spreading?

Accepted Answer

shifting of the poles, N/S, S/N, N/S, SN

Answer

Everything points to the north

Answer

seafloor contains magma

Answer

Lake and Sea

Question 14

At the Mid-Ocean Ridge and active volcanoes you can find:

Accepted Answer

newest crust

Answer

fault lines

Answer

earthquakes

Answer

older crust

Question 15

Ferromagnetic molecules make up little shavings of iron that are in rock and align themselves to magnetic north when the rock is molten and liquid. Where do we find this?

Accepted Answer

On either side of mid-ocean ridges

Answer

Past the subduction zones where land and ocean plates collide

Answer

On the land under the Antarctic cap

Answer

In the layers of rock surrounding the Grand Canyon

Answer

In the convection cells of the mantle

Question 16

The diagram shows the magnetic polarity (they look like zebra stripes) of the seafloor at the Mid-Ocean Ridge. Which of the following statements is true about the magnetic polarity pattern of the ridge?

Accepted Answer

Stripes form mirror images (are symmetrical) on either side of the mid-ocean ridges

Answer

Stripes of normal polarity and reversed polarity DO NOT alternate across the ocean bottom.

Answer

Stripes form different images on either side of the mid-ocean ridges

Answer

there is not a pattern that is created

Create a free account and access millions of resources

Similar Resources on Wayground

Popular Resources on Wayground

Discover more resources for Science