The amount of mass per unit volume of a substance is referred to as its A. density
B. solubility.
C. malleability
D. state.
O E. phase.

1) the mayans built pyramids just like the egyptians. the mayans also used hieroglyphics like them.2) power was passed down by family. for example, if the father dies, the son would be the next king.3)they both built pyramids for their structures.4)the main crop for the mayans was maize.5)they also grew manioc, beans,  squash,  amaranth, and chile peppers.

Ithink its because more have died recently than in the past.

Hello there! if you have any questions, i am always here to !