People use huge drills and pumps to remove ___ from the ground. [ aerospace, reservation, crude oil, refinery, dredge, evaporation ]
crude oil
Astronauts, engineers, and pilots are just some of the people who work in the Southwest's ___ industry. [ aerospace, reservation, crude oil, refinery, dredge, evaporation ]
aerospace
Many Native Americans in the Southwest live and work on a ___. [ aerospace, reservation, crude oil, refinery, dredge, evaporation ]
reservation
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