what is energy, is the ability to perform work or change something, is the ability do make perform work or change something, why do energy help, breakdown of exactly how energy efficiency, helps by lowering utility bills, reducing harmful emissions for better public health, and preserving natural resources for the future., why do we need energy, to sustain life, fuel cellular processes, power movement, and maintain our body temperature., because it powers everything we do—from running and playing to thinking in class—and it allows our bodies to grow, heal, and stay warm, "What are the most effective strategies to cut utility bills and improve energy efficiency in extreme climates?, adjusting temperatures to maximize efficiency., optimizing your biggest power consumers: cooling, heating, and water., do we need energy, Yes, energy is absolutely essential., no, energy is absolutely not essential., is energy important for us, no Energy is absolutely essential., yes Energy is absolutely essential., should we waste energy, No, wasting energy should generally be avoided, yes, wasting energy should generally be avoided, are waste-to-energy plants bad for the environment, "good," but their environmental impact is complex., "bad," but their environmental impact is complex.

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