I would go with 'Major sandstorms destroyed the crops' because the Indus Valley civilization most likely declined by something affecting the food.
I believe that Britain, France, United States, and the Soviet Union controlled each of the four zones. Hope this helped!
Answer:
A
Explanation:
Who knows what is under the ground there could be treasures from humans that died thousands of years ago.
Im learning this right now and I think its either a or c. Sorry if im wrong
