Geology (Pt 2)

Question 1

Asthenosphere

Answer 1

The layer of Earth located in the outer part of the mantle, composed of semi-molten rock.

Question 2

Lithosphere

Answer 2

The outermost layer of Earth, including the mantle and crust.

Question 3

Hot Spot

Answer 3

In geology, a place where molten material from Earth’s mantle reaches the lithosphere

Question 4

Plate Tectonics

Answer 4

The theory that the lithosphere of Earth divided into plates, most of which are in constant motion.

Question 5

Seafloor Spreading

Answer 5

The formation of new ocean crust as a result of magma pushing upward and outward from Earth’s mantle to the surface.

Question 6

Earthquake

Answer 6

The sudden movement of Earth’s crust caused by a release of potential energy along a geologic fault and usually causing a vibration or trembling at Earth’s surface.

Question 7

Epicenter

Answer 7

The exact point on the surface of Earth directly above location where rock ruptures during an earthquake.

Question 8

Richter Scale

Answer 8

A scale that measures the largest ground movement that occurs during an earthquake.