The biosphere contains all the systems (air, water, heat, land) that support life on earth.
The biosphere, speaking generically, is all the living things -- plants and animals -- in the world. The biosphere is the global ecosystem, the sum of all the planet's ecosystems. This includes the...
Earth surface
the global sum of all ecosystems
because it is the second biosphere. earth is biosphere 1 :) <3 <(@