What Causes Changes to Earth's Landforms?

An area of new land at the mouth of the river, formed from sediments carried by the river.

• sinkhole
• mouth
• delta
• glacier

A large hole formed when the roof of a cave collapses.

• delta
• sinkhole
• canyon
• river

Blowing sand that chips away at a rock's surface by breaking it into smaller pieces

• water erosion
• wind weathering
• depostion
• erosion

The Grand Canyon was formed by 

• Wind
• Water Erosion
• Glaciers
• a sinkhole

How does the speed of water in a river affect its ability to cause erosion?

• it increases its ability
• it decreases its ability
• it has no affect

Waves cause 

• erosion
• depostion
• both erosion and depostion
• neither erosion or depostion

Landsides are caused by

• heavy rains and gravity
• roof of a cave collapsing

Glaciers deposit sediment as they begin to melt creating

• sinkholes
• landslides
• moraines
• weathering

Plants cause 

• weathering
• erosion
• both weathering and erosion
• neither weathering or erosion

Plants can also ___________ erosion from wind and water.

• produce
• prevent 
• prevail