Fill in each blank with an appropriate word.
1-..... energy resources include coal, oil, natural gas and uranium.
2-..... energy creates clean, renewable power from the sun.
3-We need to look for ways to reduce our carbon ..... .
4-Coal is a ..... fuel that was formed millions of years ago.
5-Renewable energy sources will never ..... out because they are easily replenished.
6-Burning fossil fuels emits a lot of pollutants that are ..... to the environment.
7-Solar ..... are fitted to building and turn the sun's ray into energy.
8-Some countries are ..... coal with natural gas because natural gas is less polluting than coal.