The first law of thermodynamics, and probably the only one I can ever remember, says that energy cannot be created or destroyed - it may be transformed or moved – but it definitely does not appear from thin air. Plants use a lot of energy. Every day they busy themselves converting all sorts of energy, gases and matter into the elements and nutrients they need to grow. The energy they have converted is then passed on to us via these nutrients – they make up the food we eat.
26 April 2012 | 12 Comments
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