Chapter 11 Test Review

Which BEST describes the movement of Earth’s tectonic plates?

• They moved for millions of years in the past but have now stopped.

• They did not move for millions of years but are now moving.

• They have been moving for millions of years and are still moving.

• They have never moved.

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NGSS.MS-ESS2-3

NGSS.MS-ESS2-2

Subduction zones occur along

• divergent boundaries.

• convergent boundaries.

• transform boundaries.

• in the middle of plates, above hot spots.

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NGSS.MS-ESS2-3

The Ring of Fire is located along the edges of the Pacific Ocean. Why are there so many volcanoes there?

• Because the climate is very warm in this area of the world.

• Because there are a lot of earthquakes.

• Because there are many subduction zones located along the edges of the Pacific Plate.

• Because plates are splitting and moving apart along the edges of the Pacific Ocean.

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NGSS.MS-ESS2-3

Of the following, which would be least likely to indicate that an eruption of a volcano will soon occur?

• recurring earthquakes in the vicinity

• decreases in precipitation in the area

• changes in gas emissions from the volcano

• uplifting of the surface of the volcano

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NGSS.MS-ESS3-2

A volcanic eruption can affect the atmosphere by

• reducing the amount of water vapor in the atmosphere.

• adding large quantities of several gases, such as sulfur dioxide and carbon dioxide, to the atmosphere.

• clearing away nearby clouds, increasing the amount of sunshine.

• increasing the amount of oxygen due to escaping gases.

When two oceanic plates are moving toward each other, which of the following typically happens?

• The older, denser plate dives beneath the younger, less dense plate.

• An ocean trench forms.

• An island arc forms.

• All of the above.

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NGSS.MS-ESS2-3

NGSS.MS-ESS2-2

Which of the following is LEAST related to the safety of an area around a volcano?

• The likelihood of the volcano to erupt in the future

• The height of the volcano

• potential for other hazards related to volcanic eruptions

• the strength of the last eruption that occurred

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NGSS.MS-ESS3-2

Which statement below is TRUE?

• The force of a volcanic eruption depends partly on the content of the magma.

• Magma that is high in silica flows easily and produces dark-colored lava.

• The vent is where the magma is stored in a volcano.

• Mt. St. Helens erupted and produced a vast amount of dark, runny basalt.

Pumice forms when ____.

• gas bubbles are trapped in cooling lava, leaving spaces in the rock.

• lava meets cold water.

• lava cools quickly, giving it a smooth, glassy appearance.

• there is a very low silica content in the cooling lava.

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NGSS.MS-PS1-4

Which of the following would make the most explosive volcanic eruption?

• magma from a shield volcano

• magma that is at a higher temperature

• magma with a low viscosity

• magma containing a lot of silica