The negro river is the largest blackwater river in the world. "blackwater" refers to the fact that it is a deep river that flows slowly through forested swamps and wetlands, with dark-colored waters as a result of tannins that are leached out of decaying vegetation. what country does this blackwater river flow through? a) ecuador b) brazil c) colombia d) peru e) venezuela

analyze the map below and answer the question that follows.

what does the map above tell us about the endemity of typhoid fever?

a.

there is greater occurrence of the disease in the western hemisphere.

b.

there is greater occurance of the disease in the northern hemisphere.

c.

countries located in equatorial regions are more likely to have incidents of typhoid fever.

d.

typhoid fever is more rampant among caucasian populations.