What is the identity element for addition of rational numbers. (FIRST ONE TO ANSWER GETS POINTS)​

How did chinese culture change during the warning stated period

Which best describes colonial shipping activity in the port of charles town

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.