Answer: 4
Explanation: 16 times 1/4 is 4.
If its the region of the united states then I'll say the west. The west has so many native tribes it's hard to count. States like Utah,Montana,Wyoming make up the majority of the influence.
If this is a true or false this would be true
the answers are floods,cyclones,droughts,tidal surges, tornadoes, earthquake