Age is when you determine the most accurate and specific age of an sample

In some african american communities, unemployment was as high as percent.

How did inca develop their road system? a) they used mortar to hold the stones together.b) they built suspension bridges over rivers. c) they mixed copper and stone together to make the blocks.d) they laid roads in the cities, not in the less densely populated deserts.

How did the shift to farming affect native american cultures?