Hydrologic Cycle and Streams, Geo Final Exam!

How much percentage of fresh water consists of the Earth surface water?

Fresh water consists of 4% of Earth’s surface waters

Evaporation

Liquid water turns into water vapor

Precipitation

Water vapor turns into liquid water

Runoff

Precipitation falls on land then into a stream or lake

Infiltration

Precipitation falls on the surface, then soaks into the ground

Storage

Water taken out of circulation due to it being frozen. (a glacial ice or snow)

What do rivers make?

Rivers make V-shaped valleys

What are Headwaters of rivers?

They have high energy, sediment deposits are coarse, and the channel is straight

What is Headward erosion?

Streams carving back and smoothing out the landscape

What is the hydrologic cycle?

the motion of water through the
Earth’s various reservoirs

What is a Cut Bank?

Places of erosion and where water erodes outside of band

What is Point Bar?

Places for deposition

Why do stream meander?

Changes in velocities of high in outer band and lower velocity in inner band.

What are Oxbow Lakes?

Are former meandering parts of streams that have been isolated and still have water

How are Deltas form?

When a flowing river meets a standing body of water