Reference no: EM133176858

1. What are the main competing uses of land?

2. Differentiate between subsistence and commercial agriculture.

3. Discuss how subsistence and commercial agriculture affect the lithosphere, hydrosphere, and atmosphere.

4. Propose sustainable solutions to practices in subsistence and commercial agriculture.

5. What is soil erosion? How have humans increased the rate of soil erosion globally?

6. What are the environmental implications of soil erosion?

7. What are the benefits of organic matter to the soil?

8. Describe soil conservation methods that may be practiced on agricultural land to reduce soil erosion.

9. Outline the benefits of using organic fertilizers over synthetic inorganic fertilizers.

10. What is monocropping and what are its implications on the environment?

11. Despite an increase in agricultural production, the world continues to have hunger. Why?

12. a. Explain the terms salinization and desertification?

b. Describe the processes that may result in desertification.

13. Describe the possible environmental impacts of agricultural systems on the world's water.

14. Discuss the possible mechanisms which can be used to increase soil fertility.

15. Define the term "integrated pest management".

16. Name and describe various alternatives to pesticides used to control pests.

17. Genetic engineering is being promoted as the solution to world food security. However, some argue that we should proceed with caution. Discuss the advantages and disadvantages of genetic engineering.