EM FA3

Question 1

What is the process that occurs when the movement of water carries away loose soil particles?

Answer 1

water erosion

Question 2

What is a barrier of trees or shrubs around fields to reduce the impact of wind on soil?

Answer 2

A windbreak

Question 3

What is the process where arid and semi-arid regions, continued soil erosion can turn fertile land into desert-like conditions?

Answer 3

desertification

Question 4

What can you plant to help mitigate soil erosion?

Answer 4

vegetation

Question 5

Which areas experience soil erosion due to the action of waves and tides?

Answer 5

coastal areas

Question 6

What does soil erosion decrease by depleting essential nutrients and organic matter in the soil?

Answer 6

crop yields

Question 7

True or false:
Deforestation contributes to soil erosion.

Answer 7

True

Question 8

True or false:
Overgrazing by animals can prevent soil erosion.

Answer 8

False

Question 9

True or false:
Soil erosion can only happen on farmland.

Answer 9

False

Question 10

Define ‘Desertification’.

Answer 10

Desertification is when arid and semi-arid areas experience soil erosion that turns the land into desert-like land.

Question 11

Define ‘Agroforestry’.

Answer 11

Planting trees or shrubs around crops to help reduce soil erosion by wind and water.

Question 12

List the effects of soil erosion.

Answer 12

-Loss of fertile soil
-Decreased agricultural productivity
-Water pollution
-Loss of habitat
-Desertification

Question 13

How can terracing help prevent soil erosion?

Answer 13

Terracing or building steps along hilly areas help slow down the flow of water which reduces soil erosion.

Question 14

List the ways to reduce soil erosion.

Answer 14

-Vegetative cover
-Cover crops
-Agroforestry
-Terracing
-Windbreaks
-Conservation Tillage

Question 15

How does Overgrazing increase soil erosion?

Answer 15

Overgrazing occurs when livestock eat vegetation faster than it can regrow,
This leads to faster soil erosion.

Question 16

List the different types of soil erosion.

Answer 16

-Sheet erosion:
When a thin layer of soil in a
large area is removed by water.
-Rill erosion:
When small channels or ‘Rills’ form in soil due to water contact
-Gully erosion:
When large channels or ‘Gullies’ form resulting in massive loss of soil.
-Wind erosion:
When topsoil is carried away in wind.
-Coastal erosion:
When coastal areas experience soil erosion due to tides and waves