Weathering and Erosion Unit Test

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

How are canyons formed?

• Wind blows sand into high piles, which form the canyon walls.
• Rivers erode soil and rock over time, leaving behind canyon walls.
• Gravity causes rocks to fall from mountain sides onto valley floors.
• Ice freezes and thaws in cracks of rocks, and the cracks become canyons.

This type of weathering occurs when rocks weaken then break down due to chemical changes in the composition of the rock.

• mechanical weathering
• chemical weathering
• erosion weathering
• deposition

This type of weathering occurs when rock is physically broken down into smaller pieces of rock.

• mechanical weathering
• chemical weathering
• erosion weathering
• deposition

Which province are we located in?

• Coastal Plain
• Piedmont
• Blue Ridge
• Valley & Ridge

Which province is known for its karst topography?

• Piedmont
• Coastal Plain
• Valley & Ridge
• Blue Ridge

The Appalachian Plateau is the best place in Virginia to find - 

• Coal 
• Kyanite 
• Sand 
• Gravel 

What sedimentary rock is found in the Valley and Ridge that is responsible for Karst Topography? 

• Limestone
• Sandstone 
• Granite 
• Coal 

What mineral makes up limestone?

• Carbonic Acid
• Calcite
• Bedrock

When water mixes with carbon dioxide in the air, what solution is formed?

• Carbonic acid
• Calcite
• Calcium carbonate