Earth Structures Review

What is the outermost layer of the Earth called?

• Crust
• Mantle
• Outer Core
• Inner Core

What layer of the Earth is found beneath the crust?

• Crust
• Mantle
• Outer Core
• Inner Core

What is the outer most part of the Earth's core called?

• Crust
• Mantle
• Outer Core
• Inner Core

What is the basic composition of Earth's core?

• The solid inner core is surrounded by a liquid outer core.
• The liquid inner core is surrounded by a solid outer core.
• Both the inner core and the outer core are solid.
• Both the inner core and the outer core are liquid.

Which layer of the Earth is liquid metal?

• Crust
• Lithosphere
• Outer Core
• Inner Core

Wegener's theory states that the continents were once joined to form a supercontinent called.....

• Ultron
• Pangea
• Neverland
• Mesa

The theory that all of the continents were one massive continent 250 million years ago is called...

• The Theory of Plate Tectonics
• The Theory of Relativity
• The Theory of Continental Drift
• The Theory of Evolution

Which of the following was NOT used to explain Alfred Wegener's Theory of Continental Drift?

• Fossils and coal fields
• Climate (glaciers)
• The shape of the continents
• Earthquake patterns

In sea floor spreading, molten material rises from the mantle and erupts along a what?

• Rift Valley
• Deep Ocean Trench
• Mid-Ocean Ridge
• Ring of Fire

What is the process that occurs at mid-ocean ridges called?

• Subduction
• Sea-Floor Spreading
• Convergence
• Radiation