Incandescent lightbulbs—soon to disappear Australia Canada New Zealand, and the European Union started phasing out incandescent lightbulbs in 2009. The United States phased them out in 2014. These bulbs have provided light for the world for more than 90 years. What’s the problem?
Incandescent lightbulbs produce light when electrons (
Banning incandescent bulbs will reduce energy usage. According to the Department of Energy, about
Suppose you changed all incandescent lightbulbs to more energy-efficient bulbs that used one-fourth the amount of energy to produce the same light. About how many
a. 3
b. 10
c. 20
d. 50
e. 100
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