What is energy english - доклад по прочим предметам



  • Everything in the universe is either energy or matter.
  • For us humans, energy is the means for doing work.
  • Picking up a book, watching TV or launching a Space Shuttle all needs energy.
  • Without it there would be no life, for all life uses energy.
  • But what about oil, gas or coal, which also come from inside the Earth?
  • These have formed 'fossil fuels' or 'non-renewable' energy sources.
  • Most energy is not available to us in a usable form.
  • A fast-flowing river is full of energy we can't use.
  • Life needs energy.
  • Life's energy is self-perpetuating only so long as there is sunshine.



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