Erosion by Water

Erosion by Water

How does water change Earth's surface?

Multiple Choice

Why is gravity a factor in watersheds? 

• it causes the water to flow away from a watershed
• it causes the water to flow towards a watershed

Multiple Choice

What is a watershed?

• Land that collects and channels water froma small body of water to a larger body of water
• the shape of the land determined by elevation
• A natural stream of water of considerable  volume
• a river and all its tributaries

Multiple Choice

What do we call the steepness of a river?

• Load

• Discharge

• Meander

• Gradient

Multiple Choice

What do we call the volume of water that flows past a given point in a certain time period?

• Load

• Discharge

• Gradient

• Meander

Multiple Choice

When soluble particles are dissolved into the river it is called:

• Hydraulic Action

• Abrasion

• Saltation

• Solution

Multiple Choice

Tiny particles such as silt are usually transported:

• in solution

• in suspension

• by saltation

• by traction

Multiple Choice

The force that causes materials to flow down the slopes

• Water Force
• Gravity
• Friction
• Normal Force

Multiple Choice

What kind of river produces meanders like the ones in the image?

• Young

• Old

Multiple Choice

At which stage would a river have a lot of sediment deposition?

• old

• mature

• youthful

• rejuvenated

Multiple Choice

Downward rotational movement of blocks of material along curved surfaces

• Rockfall
• Rockslide
• Slump
• Creep

Multiple Choice

A loop like bend in the course of a river.

• meander
• oxbow lake
• alluvial fan
• delta

Multiple Choice

The Grand Canyon was created when the Colorado River cut down into rock over millions of years. Which process is this an example of?

• Erosion

• Deposition

Multiple Choice

Which of these terms refers to the steepness of slope?

• erosion

• gradient

• deposition

• discharge

Multiple Choice

A meander cut off from a river.

• alluvial fan
• delta
• flood plain
• oxbow lake