How long would it take to drive from tulsa, oklahoma to dallas, texas?

Which of the following countries has declared itself nuclear free

What first caused people to consider that the continents were once one large landmass?

Acivilization exists for several hundred yeaars, developing its own language. such a civilization probably has been: a. farming corn b. suffering from a lack of contact with the outside world. c. isolated by mountains or some other physical barriers. d. starving from lack of trade.