River channel processes and landforms

The beginning of a River is known as its?

• Source

• Mouth

• Tributary

• Confluence

The Missouri River meets up with the Mississippi River south of St. Louis... This point where they meet is known as a...

• Source

• Mouth

• Confluence

• Tributary

Nebraska sits atop a vast source of freshwater, what is this underground reserve known as an?

• Cavern

• Aquifer

• Aquiclude

• Lake

A defined volume of water as it passes a measuring point or gauging station in a river during a given time... is defined as a river's?

• current

• force

• level

• discharge

These factors can effect the discharge level of a river

• precipitation

• temperature

• irrigation

• all of the above

The Lag time displayed in this hyrdograph is...

• 10 hours

• 12 hours

• 8 hours

• 6 hours

Peak discharge is at what time... on this hydrograph?

• 2am

• 1pm

• Mindnight

• Noon

What factors can SHORTEN the lag time displayed in a hydrograph?

• The size of a drainage basin (smaller)

• the gradiant of the basin (steeper)

• Saturation of the Basin's soil

• All the Above

The Scraping and rubbing action (along the channel) of the material carried downstream by the channel

• Abrasion

• Solution

• Attrition

• Hydraulic Action

When a river crashes into rock and or the banks of the channel and compresses air in the cracks causing 'mini' explosions. This is called?