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CHR’s "Green Knowledge" Quiz
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CHR’s "Green Knowledge" Quiz
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1,100
If you replace an incandescent bulb with a CFL, what percent of energy will you save?
 
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Comments:
  1. If you replace an incandescent bulb with a CFL, what percent of energy will you save?
    1. 75%
    2. 50%
    3. 33%
    4. 20%