Answer:
I am assuming you want answers to number 4:
California has greatest Earthquake Damage
Wyoming has greatest Volcano Damage
This information affects where urban planners and engineers build new cities or buildings, and how they build them. They wouldn't put a house on an active volcano, and if they are building something near a fault line, they should be sure to reinforce their structure and take extra precautions.
Answer:
The E.U was formed November 1st 1993
