Weathering and Erosion

Bobby observed that a metal trash can was covered with rust.  What type of weathering caused the rust on the trash can?

• Mechanical weathering 
• Wind weathering
• Chemical weathering
• Erosion weathering

These rocks were broken apart from the continuous freeze/thaw of water in the cracks of the rocks. This is an example of:

• ice wedging
• acid rain
• permeability
• abrasion

These gravestones have slowly broken down and turned a blackish color due to the action of:

• ice wedging
• abrasion
• acid rain
• mechanical weathering

Potholes forming in the road after a cold winter is an example of what type of weather?

• mechanical weathering

• chemical weathering

The diagrams shows a rock with water trapped in the cracks during the day and at night. 

Which statement best explains why this process results in weathering?

• frozen water acts as a solute
• water expands when it freezes
• the mass of water increases when it freezes
• frozen water dissolves most types of rock

Rain washing away soil from a hillside

• Weathering
• Erosion
• Deposition

Waves dropping sand on the beach

• Weathering 
• Erosion
• Deposition

Caves being formed by acid rain dissolving underground limestone

• Weathering
• Erosion
• Deposition

Deltas forming at the mouths of rivers are an example of:

• Weathering

• Erosion

• Deposition

Water getting into cracks, freezing, and breaking the rocks or pavement apart

• Weathering
• Erosion
• Deposition