Which of the following is true?
a. the legend explains the symbols.
b. the scale runs east and west.
c. the compass rose represent things based on the legend.
d. lines of longitude run east and west.

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.