Ch.7- Fluvial Processes

Question 1

Rill

Answer 1

A shallow channel in the soil that is created by erosion from flowing water

Question 2

Gullies

Answer 2

Large channels in the earths surface that are created when rills merge

Question 3

Stream

Answer 3

A flowing body of water formed by merging gullies

Question 4

River

Answer 4

A large waterway formed by the convergence of multiple streams & tributaries

Question 5

List the fluvial landforms in increasing scale

Answer 5

runoff, rills, gullies, streams, tributaries, rivers

Question 6

Drainage Density

Answer 6

a measurement of the total length of channels in a watershed, relative to the area of the watershed

Question 7

Watershed

Answer 7

an area or ridge of land that separates waters flowing to different rivers, basins, or seas.

Question 8

Stream Discharge

Answer 8

the volume of water that moves over a designated point over a fixed period of time

Question 9

Laminar Flow

Answer 9

easy, parallel flow

Question 10

Turbulent flow

Answer 10

where the current is more overchaotic

Question 11

Critical Shear Stress

Answer 11

shear stress at which a material begins to move/erode