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Today, scientists use bacteria for biofuels. Recent technological advances have made a battery running on bacteria a reality. |
Replace your incandescent
light bulbs with compact
fluorescents. Incandescent lamps
use 3 to 4 times more
energy than CFLs, generate
lots of heat,and burn out quicker. |
Winter, drapes or blinds should be open when windows are in direct sunlight or you are using the daylight, and closed otherwise.
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