The Solid Earth - Chapter 3: Work of Streams

Question 1

Circular holes that are carved into the channel floor by sharp pebbles

Answer 1

potholes

Question 2

sediment that is transported in solution

Answer 2

dissolved load

Question 3

sediment that is transported in suspension

Answer 3

suspended load

Question 4

sediment transported along the bottom

Answer 4

bed load

Question 5

The dissolved load is largely brought to the stream by _____

Answer 5

groundwater

Question 6

Most streams carry the largest part of their load in _____

Answer 6

suspension

Question 7

The coarser particles moving along the bottom of the stream constitute the ___ ____

Answer 7

bed load

Question 8

Sediment moving by ____ appears to jump or skip along the stream bed

Answer 8

saltation

Question 9

True or false: the suspended and dissolved loads are in constant motion, but the bed load is not necessarily

Answer 9

True

Question 10

A stream’s ability to carry its load is established by ___ and ____

Answer 10

competence

capacity

Question 11

The maximum load a stream can carry

Answer 11

capacity

Question 12

the measure of the maximum size of particles a stream can transport

Answer 12

competence

Question 13

stream transport provides a mechanism by which solid particles of various ____ are separated is called sorted

Answer 13

sizing

Question 14

the well sorted material typically deposited by a stream

Answer 14

alluvium

Question 15

when a stream enters the waters of an ocean or lake, its forward motion is quickly lost and the resulting deposits form a ____

Answer 15

delta

Question 16

The particles that go the farthest (finer particles) will form the ___ beds

Answer 16

bottomset

Question 17

Before the accumulation of bottomset beds, _____ beds beging to form and are composed of coarse seiment

Answer 17

foreset

Question 18

What are foreset beds usually covered by

Answer 18

topset beds

Question 19

the divisions of the main channels of streams

Answer 19

distributaries

Question 20

features similar to deltas that form on land

Answer 20

alluvial fans

Question 21

a landform built by rivers that occupy valleys with broad, flat valley floors on occasion which parallels its channel

Answer 21

natural levee

Question 22

Marshes called ___ ____ form because the area behind the levee is poorly drained

Answer 22

back swamps

Question 23

A tributary stream that attempts to enter a river with natural levees and has to flow parallel to the main stream until it can breach the levee

Answer 23

yazoo tributaries