Plate Tectonics

Weathering and erosion of Earth’s crust are primarily caused by

• Gravity

• Volcanic Activity

• Evaporation

• Sedimentation

Oceans, glaciers, lakes, and rivers are part of Earth’s

• atmosphere

• hemisphere

• hydrosphere

• lithosphere

Convection currents in Earth’s mantle are believed to be responsible for

• ocean currents

• crustal plate movements

• climatic changes

• uneven surface heating

In which diagram are the layers of Earth correctly labeled?

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The map below indicates the possible location of some of Earth’s continents in the past. Which evidence best supports the idea that the landmasses on Earth were once in these positions?

• (North America and India have matching mountain chains.

• Madagascar and India have similar shapes.

• Matching rock layers can be found in Africa and South America.

• Bedrock in Australia and Greenland have glacier scratches.

The thin layer of water that covers most of Earth’s surface is called the

• atmosphere

• hydrosphere

• lithosphere

• biosphere

The San Andreas Fault is the result of

• overpopulation

• a large glacier

• weathering and erosion

• crustal plate movement

Four identical sand castles are shown below. Which sand castle will most likely be eroded fastest by the wind?

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Movement of Earth’s crust along plate boundaries produces

• fronts

• hurricanes

• ides

• earthquakes

When did erosion become the most dominant process in the development of the landscape shown in stage 4?

• at stage 1

• between stages 2 and 3

• at stage 2

• between stages 3 and 4