Earthquakes and USA

Oceanic crust is thicker than continental crust

• True

• False

The outside layer of the earth is called ______________________.

• core

• crust

• mantle

• outer core

Answer explanation

This is the solid layer of the Earth. This layer is formed by the solidification of the molten lava and so the rocks contains silicate and alumininum.

The lava in the outer core of the earth is believed to be made of

• copper

• iron

• gold

• nickel

• silver

It is mostly Iron

• Outer Core

• Inner Core

• Crust

• Mantle

A thick layer of hot dense rock

• Inner Core

• Crust

• Outer Core

• Mantle

Earthquakes are series of ----- or movements in the earth's crust.

How many type of crust are there?

• 2

• 3

• 4

• 5

Answer explanation

Earth's crust is divided into two types: oceanic crust and continental crust.

Which fact is true about destructive collision?

• Oceanic and continental crust collide

• The plates move away one another

• As the plates collide, continental plate is forced beneath the the oceanic plate.

• Volcano is not formed

_________ plate boundaries exist where two plates slide past each other along a fault. Often causes earthquake

• Destructive

• Constructive

• Convservative

• Collision

Oceanic crust is denser than continental crust

• True

• False