landforms

The Richter scale measures:

• the amount of radon gas released
• the movement of plates
• the strength of an earthquake
• the weight of tectonic plates

An instrument that detects and measures earthquakes is a...

• seismogram
• focus seismic map
• focus
• seismograph 

A sudden shaking of the earth is called an ______________________. 

• tsunami
• earthquake
• pressure
•  seismograph

Most earthquakes happen along the _________________. 

• coast
• faults
• desert
• directions

A sleeping volcano is called what?

• active
• dormant
• extinct

Can volcanic eruptions effect climate?

• yes 
• no

How does freezing water cause the weathering of rocks?  The freezing water—

• keeps the rocks in place.
• makes the rocks last longer.
• expands cracks and breaks rocks.
• causes rocks to fall in landslides.

The process that breaks down rocks and other materials on Earth's surface is called

• Weathering
• Erosion
• Deposition
• Decomposition

Over long periods of time, deposition may change the Earth’s surface by _____.

• forming new land features.
• breaking down large rocks into smaller ones.
• washing away beaches.
• moving topsoil.

Waves dropping sand on the beach:

• Weathering
• Erosion
• Deposition