6. The following graph shows the incidence of typhoid fever in Ethiopia from 1957 through 2010 E. C. Mark the graph to show when this disease occurred sporadically and epidemically. What appears to be the endemic level? What would have to be shown to indicate a pandemic of this disease? (4pts)

they had the law tat factories that produces smoke cannot be built near residential buildings.

building of proper sewage system was done to ensure that the waste is carried away from the humans so that they do not get diseases from it.

also they built water systems to provide water in those areas which are drought prone.

your answer is going to be physical weathering

answer; (b) clear with a slight blue tint;

it's a.true. i'm kind of smart.