1. Soil Conservation Chapter 2.4

2. Learning Goal 0 S.6.6 – Sources of energy and materials differ in amounts, distribution, usefulness, and the time required for their formation.

3. Sod The thick mass of tough roots at the surface of the soil

4. Natural Resource Anything in the environment that humans use.

5. Dust Bowl The mid-west area of the United States that experienced the worst of the drought during the 1930s. Soil turned to dust, and farmers were unable to farm crops.

6. Dust Bowl

7. Soil Conservation The management of soil to prevent its destruction.

8. Contour Plowing Farmers plow their fields along the curves of a slope.

9. Conservation Plowing Farmers disturb the soil and its plant cover as little as possible.

10. Crop Rotation A farmer plants different crops in a field each year.

11. Soil is a nonrenewable resource Fertile soil is valuable because there is a limited supply. Less than one eight of the land on Earth has soils that are well suited for farming. Soil also takes a long time to form.

12. Soil Damage Human activities and changes in the environment can affect the soil.

13. Notes 0 Why is fertile soil considered a nonrenewable resource?

14. Notes 0 Why is fertile soil considered a nonrenewable resource? 0 Because fertile soil is in limited supply and takes a long time to form, it is considered a nonrenewable resource.

15. Notes 0 Why is fertile soil considered a nonrenewable resource? 0 Because fertile soil is in limited supply and takes a long time to form, it is considered a nonrenewable resource. 0 How can soil lose its value?

16. Notes 0 Why is fertile soil considered a nonrenewable resource? 0 Because fertile soil is in limited supply and takes a long time to form, it is considered a nonrenewable resource. 0 How can soil lose its value? 0 The value of soil is reduced when soil loses its fertility and when topsoil is lost due to erosion.

17. Notes 0 Why is fertile soil considered a nonrenewable resource? 0 Because fertile soil is in limited supply and takes a long time to form, it is considered a nonrenewable resource. 0 How can soil lose its value? 0 The value of soil is reduced when soil loses its fertility and when topsoil is lost due to erosion. 0 What are some ways that soil can be conserved?

18. Notes 0 Why is fertile soil considered a nonrenewable resource? 0 Because fertile soil is in limited supply and takes a long time to form, it is considered a nonrenewable resource. 0 How can soil lose its value? 0 The value of soil is reduced when soil loses its fertility and when topsoil is lost due to erosion. 0 What are some ways that soil can be conserved? 0 Soil can be conserved through contour plowing, conservation plowing, and crop rotation.

19. Dust Bowl 0 https://www.youtube.com/watch?v=x2CiDaUYr90