Geohazards & Weathering and Erosion

Intense heat and pressure in Earth's crust can change sandstone into quartzite. During this metamorphosis, many properties of these rocks change. Which property of these rocks will MOST likely remain the same?

• mass

• volume

• crystal structure

• particle shape

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