the type of lava that is erupted and it's Viscosity
Answer:
The common factors of 72 are
- 1,2,3,4,6,8,912,18,24,36,and72
All layers are incredibly important. If we didn't, we would die very quickly and life would be inhabitable. The radiation from the son would kill us. The heat from the sun would dry up water and kill crops leaving us with no food/water.