What were the key reasons for the large increase in colonial population in the 1700s? select the two that apply.

early marriages
few diseases and deaths
immigration
few farmers and more city dwellers

to reform the distraught soviet union, the democratization of the communist party was promoted through party secretary mikhail gorbachev's policies of “perestroika” and “glasnost.” perestroika refers to the reconstruction of the political and economic system established by the communist party.