Constructive and Destructive

What are landforms?

• new islands that often form where there are many volcanoes

• they are the result of the combination of constructive and destructive forces

• the uplifting of mountain ranges

• the deposition of sediments

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What are constructive forces/processes?

• the breaking down of Earth's surface

• the movement of soil or sediment

• the building up of Earth's surface

• deposits of sediment built up from a river flooding into a larger area of water

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What are destructive processes/forces?

• the movement of soil and sediment

• forces that build up Earth's surface

• moving wind and water

• forces that break down Earth's surface

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An earthquake happens in California that causes the land to build up. What force/process caused this to happen?

• Constructive

• Destructive

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The Grand Canyon is a result of which of these destructive processes?

• earthquake

• erosion

• tornadoes

• volcanoes

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The landform below is a sea arch. It could be included as evidence to support which of the following statements?

• Earthquakes are constructive forces that build landforms on the coast quickly.

• Waves are constructive forces that deposit sand and sediments on the coast slowly.

• Earthquakes are destructive forces that cause breakage of rock formations near the oceans.

• Waves are destructive forces that over time can wear away at the earth’s coast and change its shape.

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NGSS.MS-ESS2-2

A volcano erupts on an island and the lava hardens and turns into rocks. What force/process caused this to happen?

• Constructive

• Destructive

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Which two landforms can be both constructive and destructive?

• earthquakes and valleys

• mountains and volcanoes

• earthquakes and mountains

• earthquakes and volcanoes

An earthquake has occurred in your town. Lots of trees are destroyed and the ground has split apart. What force/process caused this to happen?

• Constructive

• Destructive

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T/F: A constructive force builds landforms on earth.

• True

• False

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