Respuesta :

The U.S. supply of natural gas is plentiful and helps to decrease our dependence on foreign oil supplies. Some potential disadvantages to consider are the following: Natural gas must be handled carefully because it is a combustible material. Like all fossil fuels, natural gas is not a renewable energy source.

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Sometimes. They can be good and powerful resources (mostly coal), but they can pollute the Earth. (Look at ISN for extra information).

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