It was ised alot. and stolen by indians
A, food surpluses.
Being nomadic means they would still be travelling.
Advanced hunting techniques only benefit the hunter, and who he shares with.
And monetary system deal with money.
Well, lets see, Abu was the one elected, however there was a dispute because some believed that Ali should have been chosen. All in all though, they accepted Abu as their leader.
I suggest you to go with first one a. there was heavy damage only within a mile of the bomb's impact. There're no closer description than that.