What is longitude and latitude?

What part did glaciers play in forming the great lakes?

On nights when we see the new moon phase, what side of the moon are we seeing?

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.