#Lived #Closed #Biosphere [ad_1] Get extra insightful details about residing in a biosphere with Jane Poynter: https://www.youtube.com/watch?v=QzgP9Y4LNlk&t What if we took all the things that sustains life on this planet, and shrunk it down to at least one small bubble? Earth’s biosphere stretches about 20 km (12 mi). From the deep-sea vents within the ocean