What is the meaning of competition in geography? i need an answer asap. Thanks!

Drastic boundary changes can occur for all of the following reasons except for a. a shift in the way a river flows b. the collapse of a government system c. a conflict between two neighboring groups d. one country's decision to sell land to another country select the best answer from the choices provide

The hebrews originally migrated from a. india b. egypt c. arabia d. mesopotamia

About 140,000 japanese died in this japanese city when americans dropped an atomic bob at the end of world war ii