C Cortney C New member Dec 27, 2010 #1 A. using solar cells to heat water for use in homes B. gasoline used in the engines of automobiles C. burning coal to operate the machinery in a factory D. burning natural gas to power city buses
A. using solar cells to heat water for use in homes B. gasoline used in the engines of automobiles C. burning coal to operate the machinery in a factory D. burning natural gas to power city buses