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  • A flock of sheep grazing above lake Wanaka, New Zealand.
    Rights: Image licenced through 123RF limited Published 30 July 2013 Size: 880 KB Referencing Hub media

    Numerous biogeochemical processes are needed for plant and animal growth. These include carbon, nitrogen, phosphorus, water and energy cycling. Nature rarely works in isolation – one process helps to drive the other.

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