This map shows the physical geography of the Chavin civilization. A map of South America. A key shows Chavin civilization in green and Mountains with a brown pyramid. Mountains run from the north coastline southeast to Peru's coastline and continue south through South America. A green shaded area is along Peru's west coast. What effect did physical geography have on the Chavin civilization? The sea made the civilization a cultural center. The mountains isolated the Chavin from other cultures. The Chavin’s nearness to other cultures led to an increase in trade. The Chavin used the mountains for protection from their enemies.

The correct answer is b. false.

The constant presence of diseases or infectious agents within a given geographic area or population group. it may also refer to the usual prevalence of a given disease with such area or group. it includes holoendemic and hyperendemic diseases. a holoendemic disease is one for which a high prevalent level of infection begins early in life and affects most of the child population, leading to a state of equilibrium such that the adult population shows evidence of the disease much less commonly than do children (malaria in many communities is a holoendemic disease). a hyperendemic disease is one that is constantly present at a high incidence and/or prevalence rate and affects all groups equally. so probably family history.