Hamburger
by Stacey Simpson
1. Bun
1.1. Wheat
1.1.1. Water
1.1.1.1. Land
1.1.1.1.1. Fertilizer
1.1.2. Pesticide
1.1.3. People
1.1.3.1. equipment
2. Meat
2.1. Cow
2.1.1. Water
2.1.1.1. Grass
2.1.1.1.1. Fertilzer
2.1.1.1.2. desertification
2.1.2. slaughterhouse
2.1.2.1. dangerous working conditions