Identify the method used to compensate for the scarcity of resources in ancient world

Experimented with communism before taking part in a number of civil rights and antiwar protest

Plz the 10 places that charles darwin stopped at to report his findings, and include dates?

Which answer best describes the u.s. national road? it ran from atlanta to baltimore and followed the railroad. it ran from new york to chicago and was made from wooden planks. it ran from massachusetts to ohio and ran parallel to the canal system. it ran from maryland to illinois and was made using macadam construction.