Chapter 15 & 16 Review

Question # 1

The rock and other material that a stream carries is known as its …..

Stream load

Question # 2

If a river’s load and discharge increased … then the river’s erosive power would decease or increase?

Increase

Question # 3

If precipitation exceeds evapotranspiration, then this will form?

A river system

Question # 4

What are braided streams?

A stream that has multiple channels divided by sediment bars.

Question # 5

What’s a disadvantage of living in a floodplain?

Property damage due to flooding.

Question # 6

What do we call a human-built structure that helps to control flooding?

An artificial levee

Question # 7

Which of the following is true of all lakes: most are located at low altitudes most last a long time in geologic terms most are short-lived in geologic terms

Most are short-lived in geologic terms

Question # 8

What’s a watershed?

the area drained by a river system

Question # 9

Streams that feed into another stream or lake are known as….

Tributaries

Question # 10

True of False --- the faster the river, the faster it erodes its channels.

True

Question # 11

Water collecting in a depression is the early step in forming what?

A lake

Question # 12

True or False --- load, discharge, and sediment are factors that widen and deepen a river channel.

False --- load, discharge, and gradient

Question # 13

Soil conservation is an indirect or direct method of flood control?

Indirect

Question # 14

What is the difference between a delta and an alluvial fan?

a delta forms in water, and an alluvial fan forms on land.

Question # 15

What is the zone of saturation?

The layer of an aquifer in which the pore space is completely filled with water.

Question # 16

What’s a spring?

A natural flow of groundwater to the surface

Question # 17

A sloping layer of permeable rock sandwiched between 2 layers of impermeable rock & exposed at the surface is called?

Artesian formation

Question # 18

What’s a stalactite?

A cone-shaped deposit of calcite in the ceiling of a cave.

Question # 19

Where does karst topography form?

both dry & wet areas

Question # 20

What is a recharge zone?

the area where water from the surface can move through permeable rock to reach an aquifer.