New technologies like steam engines, railroads, and telegraphs made for communication and transportation easier. The ability to source and transport materials across the country with ease turned many local businesses into national companies.
I think question 8 is 1, not 100% sure though...
It was "Vladimir the Great" who ordered Russians to convert to Orthodox Christianity, since he was very much impressed by the Orthodox churches in Constantinople.
According to my point of view, the main purpose of government is to establish a secure system to maintain liberty and livelihood, make sure people are getting enough money to liver better and above poverty line.
Because, if people are secure and have liberty but government is not doing anything about that. people are not survive and it will lead to disruption.