1) What are two positive feedback's ? a) b) c) d) e) f) wool 2) What are the physical and human inputs? a) Soil b) milking c) Dipping d) Labour e) Spraying f) Buildings 3) What are the processes? a) b) c) d) e) 4) What are the positive outputs? a) b) c) d) e) f) 5) What are the negative outputs? a) b) c)

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