Which type of graph is best for plotting percentages of a whole value data set a. bar graph ( is incorrect) b. circle graph c. histogram d. line graph

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.

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Rainbow trout is non- native to the united states. however this species is breeding with the native gula yltrout acientistrecently observed that the hola trout were becoming exitinct what is the cause of their extinction