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Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest. Radon gas is a radioactive product of the decay of naturally occurring uranium in the Earth's crust. Groundwater entering a house through a home water-supply system might release radon indoors where it could be breathed. Comments.
Propane, which powers many kitchen stoves and outdoor grills as well as home heating systems, is derived from natural gas. Natural gas is also used to generate 21% of our electricity. (See Our Energy System for an overview of how natural gas is used in the United States.).Natural gas is often described as âclean burningâ because it produces fewer undesirable by-products than gasoline.Like all fossil fuels, its combustion emits carbon dioxide, but at about half the rate of coal.atural gas provides 24% of our energy. Unlike oil, almost two-thirds of which is imported from foreign sources, our natural gas comes primarily from North America. The annual volume of consumption is projected to rise from 22.5 trillion cubic feet (tcf) in 2009 to about 23.5 tcf in 2030.