What is one of the main reasons we divide the world into the eastern hemisphere and the western hemisphere rather than into the northern hemisphere and the southern hemisphere? a. trade routes b. location of continents c. location of civilizations d. ocean locations

the answers are a b and d

i think i will need more detail to answer if this is a specific question on a test, but technology advancements are good for many industries, such as medicine or food industries, new technology could us in medicine in ways such as new scanners to tell us more about our bodies or new cures or vaccines for diseases.

where is the map if i see it i can give you the answer