What challenges might they have faced? it's about people who worked for missionaries

Explanation:

The missionaries themselves lived a life of piety and poverty and were in constant danger and fear for their lives. Along with their Indian charges, they, too, toiled in the missions, farmlands, and ranches.

answer; i believe that the correct answer is (agriculture);

nuclear fission produces the atomic bomb, a weapon of mass destruction that uses power released by the splitting of atomic nuclei the fighting in iwo jima and okinawa affected the allies' pacific strategy because truman decided to drop the atomic bomb on mainland japan.