Where are the Volcanoes and Earthquakes

What are the three main layers of Earth?

• Outer core, Inner core, Upper mantle

• Crust, Mantle, Core

• Mantle, Core, Lithosphere, Asthenosphere

• Atmosphere, Hydrosphere, Biosphere, Geosphere

What is the difference between the lithosphere and the asthenosphere? [Choose 2]

• Lithosphere is the upper part of the mantle, asthenosphere is the lower part of the mantle

• Lithosphere is the oceanic crust, asthenosphere is the continental crust

• Lithosphere is solid, asthenosphere is liquid

• Lithosphere is the core, asthenosphere is the crust

What evidence do geologists have that volcanoes occur on the ocean floor?

• Formation of island chains in the Pacific Ocean

• Observation of volcanic activity in deep-diving submersibles

• Presence of volcanic rocks on the floors of all ocean basins

• Eruption of Mount Saint Helens in 1980

What is the Ring of Fire and where is it located?

• A zone of high volcanic and seismic activity around the Atlantic Ocean

• A belt of volcanoes and earthquakes around the Pacific Ocean

• A series of volcanic islands in the Arctic Ocean

• A region of intense tectonic activity around the Indian Ocean

Tags

NGSS.MS-ESS3-2

NGSS.MS-ESS2-3

Where do most volcanoes on land form?

• In the middle of ocean basins

• At the poles

• In the middle of continents

• Along the edges of continents

How are rift valleys formed?

• By the movement of the outer core

• By the spreading of lithospheric plates

• By the movement of the asthenosphere

• By the collision of lithospheric plates

Tags

NGSS.MS-ESS2-3

What are hot spots? Provide an example of a hot spot on Earth.

• Regions of intense seismic activity, Example: San Andreas Fault

• Fixed sources of abundant rising magma, Example: Yellowstone National Park

• Areas of high volcanic and seismic activity, Example: Mount Vesuvius

• Areas of high geothermal activity, Example: Mount Saint Helens

What is an earthquake?

• A sudden motion or shaking of Earth caused by volcanic eruptions

• A sudden motion or shaking of Earth caused by meteorite impacts

• A sudden motion or shaking of Earth caused by human activities

• A sudden motion or shaking of Earth caused by the movement of tectonic plates

Tags

NGSS.MS-ESS3-2

NGSS.MS-ESS2-3

Explain how earthquake waves are generated by an earthquake.

• By the movement of the lithospheric plates

• By the release of energy as rocks rupture

• By the eruption of magma from a volcano

• By the melting of the inner core

Tags

NGSS.MS-ESS3-2

What is the relationship between the focus and the epicenter of an earthquake?

• The focus is the geographic point on Earth's surface directly above the epicenter

• The focus is the point within Earth where rupture first occurs, the epicenter is the geographic point on Earth's surface directly above the focus

• The focus is the point on Earth's surface directly above the epicenter

• The focus is the point within Earth where rupture first occurs, the epicenter is the point on Earth's surface directly above the focus