Commander in chief of the National Revolutionary Army (from which he came to be known as Generalissimo), he led the Northern Expedition from 1926 to 1928, before defeating a coalition of warlords and nominally reunifying China under a new Nationalist government.
Drought and damage to farm land.
Makes spaceships and and robots so that the robots can go to planets that humans can’t
The answer is : Efficient
Improved technology allows workers to be more efficient and productive. Technology cut down their working time , and making them use smaller effort with a larger quantity.
Hope this helps
