What first caused people to consider that the continents were once one large landmass? need answer now so pls hurry

glacier evidence in warmer countries
continents looked like they fit together
studying the valleys of the ocean floor
similar fossils were found on many continents

Why would the saudi’s oil industry need a large investment in human capital

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.

The colonists accused king george 111 of the great britain of being a tyrant and made specific complaints against him.what were the two main complaints made against king george?