Isthmus is a narrow piece of land linking two large areas of land.
Volume is the amount included within limits.
Complex is made up of many related parts.
Abandon is to leave often because of danger .
Achieve is to successfully complete a task or to gain. Something for working for it.
The four geographical areas of the Americas are North America South America Central America and the Caribbean.
The Americans passed by Alaska and sailed along the south side.
About 1200 B. C the people of the Olmec built the oldest culture called mesoamerica.