Answer:
They were grown and harvested by slaves, or enslaved people.
Less than "fifteen percent" of the Japanese people are farmers (in Japan, that is), due mostly to a large technological boom period and the fact that land is limited.
Post War Economic Adjustment. Millions of soldiers returning home and there was no need for many people to be working wartime sectors. They advocated for better wage and working conditions.
Uni- having a single legislative chamber
Bi- having two branches or chambers
