Plate Tectonics

Which of Earth's layers is a liquid?

• Mantle

• Inner Core

• Outer Core

• Crust

Which of Earth's layers is a solid, metallic sphere?

• Mantle

• Inner Core

• Outer Core

• Crust

Continental crust, oceanic crust, and the upper mantle make up the...

• Lithosphere

• Asthenosphere

• Outer Core

• Mesosphere

Which of the following has the lowest density?

• Mantle

• Asthenosphere

• Oceanic Crust

• Continental Crust

What is the hot, gel-like zone within the mantle where convection takes place?

• Lithoshpere

• Asthenosphere

• None of the above

Which of the following are evidence that Wegener used to support his theory of continental drift?

• fit of the coastlines of South America and Africa

• fossils of the same land animals are found on widely separated continents

• ice sheets that covered portions of India and the southern continents 250 million years ago

• all of the above

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2

According to the theory of plate tectonics, most earthquakes and volcanoes occur mainly...

• along plate boundaries.

• near the center of each plate.

• on the underside of each plate.

• all of the above.

Tags

NGSS.MS-ESS3-2

At divergent boundaries, two plates...

• move together.

• grind past each other.

• join to produce a larger plate.

• move apart.

At transform boundaries, two plates...

• move together.

• grind past each other horizontally.

• join to produce a larger plate.

• move apart.

At divergent plate boundaries...

• new crust is created.

• old crust is destroyed.