Yes. There was a huge earthquake and tsunami. People are out of homes so everyone is trying to help and find everyone and fix everything.
One major problem is healthcare.
There is no fire wood problem and the government isn't trying to solve it.
there is a bad homeless problem which we can solve.
Historians solve many different problems; there is no "key problem"
They keep trying!
binding things together
guessing
They are trying to find people that survived first and then they will re-build everything!
The nuclear bomb solved the problem the Americans were having with japan by ending the WW2.
it is a prediction at what you think will be the outcome of the experiment...
milling grain, as the name implies.
clearly define th problem they are trying to solve