How old are the oldest rocks on the ocean floor?
a. less than 200 million years old
b. approximately one billion years old
c. approximately 500 million years old
d. between 200 and 500 million years old

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.

your answer is a. hope this : )