weathering, erosion and disposition

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

• Weathering
• Erosion
• Deposition

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

• Weathering
• Erosion
• Deposition

Ponds filling up with sediment and becoming marshes

• Weathering
• Erosion
• Deposition

A satellite image of an area in Florida shows a river with slight bends along its length. A second satellite image taken of the same area 10 years later shows the same river with  a different course. What is the best explanation for the difference in the shape of the river's course between the two satellite images?

• Wind blew waves across the water surface, eroding away the bank on one side of the river until the river's course changed its shape
• Regular freezing and thawing of the river split the soil along the river banks, changing the shape of the river
• Water eroded the banks of the river and deposited the eroded soil on opposite banks, causing the river to form tighter bends
• Acid rain chemically weathered the banks along the river, forcing the river to wind back and forth

What is the major cause of weathering and erosion?

• wind
• ice
• glaciers
• moving water

The process of breaking up rocks on Earth's surface is called...

• sediment
• erosion
• weathering
• deposition 

What is mechanical weathering?

• Process through which rocks are physically broken into smaller pieces.
• Rocks are broken down through chemical changes.
• Rocks are worn away from acid in plant roots.
• Rocks broken down by machinery.