Looking for an missing airplane

Here you have the different resourses were  used to look for a missed airplane in March of 2014.

a. Can you guess the country the plane belongs? Why?
b. Can you say what the part of the Earth is? Why?
c. What is your opinion about the joinning of USA? Where is the European Union?
d. Do you think that all these resources are used in another problems around the world? Why ?
e. Try to write a summarize to explain the graph's information.