1. Traditional ____ sources like oil, coal and natural ____ have been theprincipal sources of energy around the world ____ the 1900s, and are ____ used for electricity and ____. Are they going to run ____ in the future? When will that be? How will we ____ without them? 2. Many countries ____ renewable energy is the way ____; it is energy made from natural ____ that will never run out, such as ____, waves and sun. Iceland and Norway already ____ nearly 100% of their energy from renewable resources and Denmark ____ to reach that goal by 2050, which puts them ____ of all other countries.

Future Energy

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