Lesson 10.2 PPT

Question 1

is the transportation of weathered rocks.

Answer 1

Erosion

Question 2

agents that contribute to erosion

Answer 2

running water or rivers
wind
gravity
groundwater
wave currents

Question 3

types of erosion

Answer 3

water erosion
wind erosion
glacial erosion

Question 4

is a type of erosion
where water carries the sediments to
different bodies of water such as
rivers.

Answer 4

Water erosion

Question 5

The high amount of
contributes to susceptibility of the soil
to water erosion.

Answer 5

rainfall

Question 6

happens when light
materials, such as small rocks and
pebbles, are carried by the wind to
different places.

Answer 6

Wind erosion

Question 7

happens when a
glacier, or a river of highly-compact
ice, move downhill due to its weight.

It plucks chunks of rocks and causes
scraping between the ice and the rock.

Answer 7

Glacial erosion

Question 8

Causes of Erosion

Answer 8

Soil erodibility
overgrazing
cutting of trees and removing vegetation
use of herbicides and fuel oils

Question 9

is the vulnerability of soil to erosion caused by
rainfall intensity, soil properties, crop cover, and slope.

Answer 9

Soil erodibility

Question 10

of the soil is the most significant contributing factor
to erodibility although structure, organic matter, and permeability
may also affect it.

Answer 10

texture

Question 11

by livestock or by
indigenous animals may remove
vegetation leaving the soil more
vulnerable to erosion.

Answer 11

Overgrazing

Question 12

to provide lumber
can also result in large amounts of erosion.

Answer 12

Cutting of trees and removal of vegetation

Question 13

Use of pesticides, herbicides, and fuel oils also pollutes the soil.

Question 14

can also contaminate soil due to the high salinity of
irrigation water as it passes over croplands.

Answer 14

Salt