Machu picchu was once an important place. it was a hidden retreat, or resting place, for an incan emperor. his name was pachacuti inca yupanqui. he ruled from 1438 to 1471. the city was built around 1450 ce. that was a time of war between the emperor and other incan leaders. in this hidden city, he was safe from his enemies.
what is the central idea of the excerpt?
machu picchu, a hidden city, was built for an incan emperor in the 1400s.
pachacuti inca yupanqui, an incan emperor in the 1400s, had many enemies.
machu picchu, a city in peru, has been a hidden retreat for six hundred years.
pachacuti inca yupanqui, fleeing his enemies, discovered an incan retreat.

answer; ///i believe that the correct answer is refrigerants,(like r12) and aerosol

citizens get the vast majority of their political and governmental information from the media, which includes television, print journalism, radio, and now the internet. the media play an important role in connecting people to government.

was a long, primarily nonviolent series of events to bring full civil rights and equality under the law to all americans. the era has had a lasting impact on united states society, in its tactics, the increased social and legal acceptance of civil rights, and in its exposure of the prevalence and cost of racism. in the south violence and fraud in southern elections from 1868 to 1876, which had reduced black voter turnout and enabled southern white democrats to regain power in state legislatures across the south