1. Discuss some advantages and disadvantages of fertilizer.

2. Why does eating meat carry more adverse environmental impacts than eating grains, nuts, vegetables, and fruits?

3. Why does eating meat carry more adverse environmental impacts than eating grains, nuts, vegetables, and fruits?

4. How does the high consumption of meat in some parts of the world contribute to scarcity of food in other parts of the world?

5. List some disadvantages of genetically modified organisms (GMOs). Are there advantages? What are they?

6. If everyone ate a vegetarian diet, how would that affect the number of humans that the planet could support?