Earth's Layers

Theories about the composition of the Earth's core are supported by meteorites that are composed primarily of

• aluminum and iron
• iron and nickel
• aluminum and oxygen
• oxygen and silicon

Tags

NGSS.HS-ESS1-6

The solid rock material that directly underlies the sediments on the ocean floor is part of the Earth's

• outer core
• lithosphere
• hydrosphere
• troposphere

Tags

NGSS.MS-ESS2-1

The water sphere of the Earth is known as the

• atmosphere
• troposphere
• lithosphere
• hydrosphere

Tags

NGSS.MS-ESS2-4

Which line best identifies the boundary between the lithosphere and the troposphere?

• line A
• line B
• line C
• line D

Tags

NGSS.MS-ESS2-4

The diagram below represents a cross section of a portion of the Earth's crust. Which statement about the Earth's crust is best supported by the diagram?

• The oceanic crust is thicker than the mantle.
• The continental crust is thicker than the oceanic crust.
• The crust is composed of denser rock than the mantle.
• The continental crust is composed primarily of sedimentary rock.

Which part of the Earth is most likely a liquid zone?

• outer core
• inner core
• mantle
• crust

The hydrosphere covers approximately what percentage of Earth's lithosphere?

• 25%
• 50%
• 70%
• 100%

Tags

NGSS.MS-ESS2-4

What two gases make up most of the Earth's atmosphere?

• Hydrogen and nitrogen
• Oxygen and carbon dioxide
• Hydrogen and oxygen
• Oxygen and nitrogen

The element oxygen is found in the Earth's

• hydrosphere, only
• troposphere, only
• troposphere and hydrosphere, only
• troposphere, hydrosphere, and crust

Tags

NGSS.MS-LS2-3

NGSS.MS-LS1-6

What is the second most abundant element in the crust by volume?

• Silicon (Si)
• Aluminum (Al)
• Calcium (Ca)
• Potassium (K)

Tags

NGSS.MS-ESS3-1

NGSS.MS-PS1-1