The biosphere is the global sum of all ecosystems. It can also be termed as the zone of life on Earth, a closed system (apart from solar and cosmic radiation and heat from the interior of the Earth), and largely self-regulating.
Environment , the physical and biological factors along with their chemical interactions that affect an organism or a group of organisms. Environment systems, the surroundings of a physical system that may interact with the system by exchanging mass, energy, or other properties.