Answer:
2)A biosphere existing
3)Dynamic recycling of materials needed for most 4)processes on Earth
6)Maintaining a steady and habitable temperature on Earth
Step-by-step explanation:
The atmosphere along with the distance that earth has to the sun is what makes it possible for life as we know it to exist, this is because atmosphere makes it possible for the biosphere to exist, also it sets the dynamic recycling materials and the steady and habitable temperature on Earth.