What facilitated trading for the mayans?
a. a knowledge of mining
b. the lowland river system
c. the volcanic highlands
d. the proximity to 2 oceans

What is the approximate chemical composition of the solar nebula?

Which season has the least amount of rain in the northern latitudes

The diagram shows , , and . which statement can be proven true from the diagram? a. ∠dgb is supplementary to ∠ega. b. ∠dgb is supplementary to ∠cgb. c. ∠cgb is supplementary to ∠agd. d. ∠ega is supplementary to ∠egc. e. ∠egd is supplementary to ∠cgb.