Secretary General Mikhail Gorbachev’s programs of "glasnost" and "perestroika" brought crucial Soviet political and economic reforms in the 1980s. His steps toward democratization of the Soviet Union also brought increased negotiations with President Ronald Reagan to decrease the superpowers' stockpiles of.

Which sentence best explains how steam power changed agriculture in england between 1810 and 1850? a. farmers started using steam-powered machines to spray chemical fertilizers and pesticides. b. livestock farmers began using steam-powered machines to milk cattle and shear sheep. c. steam-powered railways transport and sell agricultural produce far from where it was grown. d. steamships to transport large numbers of people from the united states to english farms.