1. What is soil?
2. What factors are needed for "best" soil and plant growth?
3. What is "soil erosion" and "soil desertification" and how does each one happen?
4. What are the three major practices that cause soil degradation?
5. What was the "green revolution" and how does it relate to food production?
6. What are three consequences of industrial-style animal farming?
7. What are three contributing factors to rises in the price of food commodities?