CHAPTER 16—ENERGY EFFICIENCY AND RENEWABLE ENERGY

Jan 23, 2014 · a. all cars were diesels b. all cars used wind power c. all cars had smaller engines d. all cars were made from ultrastrong, ultralight composite materials e. everyone sold their car 21. Orienting a building to face the sun in order that solar energy is used to help heat the building, would save what percentage of its heating costs? ................
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