According to John Green, (narrator of the video) what tool did we really need for information on location and direction?

Contrast the changes in french government policy during and after

Which factor has played the most important role in changing the way history is studied over time?

Which is the main inference that can be drawn from adam smith's book the wealth of nations? a) for an economy to work flawlessly, it shouldn't have to serve and moral goals.b) the government must control a free-market economy, or economic problems will arise.c) a free-market economy works well only without the government's interference. d) free trade will only hurt economies and should be stopped by governments.