Answer: Disease (economic disruptions) Also keep in mind that bacterica, cancer, tumors etc. were not brought up till the 1980's - 2000's
Explanation: Look at my comment because it got cencored for some reason
Whatever formation it formated
I think it's called oceanic, which I found on Quizlet
https://quizlet.com/12851610/geo-200-test-1-flash-cards/
You can take a look and see if it makes sense.
