turnip – sheep –
shepherd – wool mill – woolly jumper
But each step is part
of another set which is part of another set:-
soil – water –
seed – farmer – weeding – harvesting – turnip
comet wipes out the
dinosaurs – mammals evolve – sheep are domesticated – shepherds
ensure that the sheep are well fed, healthy and safe from predators -
sheep provide meat and wool
sheep's wool
processed – wool spun into thread – thread dyed – thread fed
into giant weaving machines – wooly jumpers advertised and
distributed
Life is an ongoing
process of churn. The energy from sunlight agitates materials (atoms)
which for a while are part of living things (biotic phase) and for a
while are part of the non-living environment (abiotic phase). “Round
and round and round in the circle game.” (Joni Mitchell)
For some fascinating
examples Google for [biogeochemical
cycles].
See elsewhere on this
blog - link
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