Inefficient use of which of the following is a major culprit in wasting energy resources (estimated at 43% of the energy Americans use)?

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All of the above (cars, appliances, homes) contribute to inefficient energy use and waste, resulting in the estimated 43% of energy used by Americans being wasted. Improperly maintained cars, old and outdated appliances, and poorly insulated homes all contribute to this problem. By improving the efficiency of these areas, we can reduce energy waste and save resources.

Inefficient Use of Which of the Following Is a Major