Which of the following obstacles would western settlers have not encountered on the waterways?

fires aboard steamships
cost of the journey
debris and other hazards
swift currents and sandbars

Asap study the map above. summarize the data shown on the map, and explain its significance relative to international events in 2007. what is the push factor? answer the following questions: what is the total number of people displaced within iraq? what is the total number of people who have migrated outside of iraq? have most refugees remained within the region or traveled abroad? to what country have most refugees within the region gone? identify three potential effects of the refugees on the destination countries. identify two potential pull factors that might induce them to return to iraq.