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consumption – n. the use of something
inventory – n. an unsold supply of a product that are stored in a place
cost-effective – adj. providing a good result at a relatively low cost
shale wells – n. wells that recover oil from shale, a kind of rock that is easily broken
alignment – n. being in line with, matching or being in balance with something else
renewable energy – n. energy produced from a source that cannot run out, such as the sun, wind or water
