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- The biosphere contains all ecosystems on earth.
- It is made up of living organisms and places where life exists.
- The biosphere has existed as long as life on earth has.
- There is a complex food chain within the biosphere.
- Organisms feed on other organisms, and when they die they decomposing bodies nurture other organisms.
- This allows the cycle of life to continue in a biosphere.
- The biosphere encompasses many different ecosystems.
- From rainforest canopies to coral reefs, all are a part of the biosphere.
- Living and nonliving things in the biosphere are seen as a single unit.
- The earth’s biosphere is about 3.5 billion years old.