Fossil fuels are found in sedimentary layers of rock. Can you recall the names
of the other two families of rock?

Shaken by the collapse of the steel industry, which had provided them with an unshakable sense of identity for more than a century, pittsburghers hunkered down and built a new economy based on services, medicine, education, and technology. in the process, they transformed their community from one driven by quantity of production into one devoted to quality of life. —peter miller, "pittsburgh: stronger than steel," national geographic, december 1991. the community remodeling carried out in pittsburgh was accomplished partly through the conversion of old factories for new uses—a process known as a. urban renewal. c. gentrification. b. retooling. d. urban pioneering.

Which of the following best describes the economy of africa?

Acharreadas is a popular mexican thing where people display varying skills of horsemanship much like what events in the united states?