TREES
da Sofia Roselli
1. ROOTS
1.1. KEEP TREES IN PLACE
1.1.1. KEEP SOIL FROM SHIFTING
1.1.1.1. BRING WATER AND NUTRIENTS TO PLANTS
2. OXYGEN
2.1. HUMANS
2.1.1. PLANTS
2.1.1.1. ANIMALS
3. WOOD
3.1. SHELTER
3.1.1. PAPER
3.1.1.1. FIRE