The north korean people are starving due to a lack of aid and wise farming methods

North Korea is a dictatorship, and the government is not allowing medical aid from abroad because they don't want to loose their control of the territory. 

They also don't use the methods of farming found in other places and which proved to be more efficient.

What does this mean lol.

Ais 190 b is 200c it can't be more then 100%