COMPOSITION OF THE EARTH
by Mónica Gutiérrez
1. WEATHER
1.1. CREATION
1.1.1. TEMPERATURE
1.1.2. PRESSURE
1.1.3. DIRECTION OF MOVEMENT
1.1.4. SPEED OF MOVEMENT
1.1.5. AMOUNT OF WATER VAPOR IN THE AIR
2. SURFACE
2.1. SOLID
2.1.1. 1/3 SOLID SURFACE
2.1.1.1. COVERED BY SOIL
2.1.1.1.1. FERTILE SOIL
2.1.1.1.2. MATERIAL: ROCKS
2.2. WIND + WATER
2.2.1. WEARS DOWN THE ROCKS
2.2.1.1. SAND
2.3. LIQUID
2.3.1. 2/3 WATER
2.3.1.1. ESSENTIAL TO LIFE
2.3.1.2. RECYCLED (PROCESS)
2.3.1.2.1. EVAPORATION
2.3.1.2.2. CONDENSATION
2.3.1.2.3. PRECIPITATION