Multiple choice general knowledge science & technology

Which lighting option produces the least amount of greenhouse gas emissions?

  1. Candles

  2. Compact fluorescent light bulbs

  3. Normal light bulbs

  4. None of the above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

CFL bulbs are the most environmentally friendly option because they use approximately 75% less energy than incandescent bulbs and last much longer. Candles produce more emissions per unit of light output, and normal incandescent bulbs are highly inefficient.

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