What made matters worse for farmers in South Carolina?
During WW1 ...

Explanation:

In WWI the American farmers increased their production to almost entirely sustain the Allied effort. This increased production was important as it helped start the engine for the war and also led to the overproduction of the Roaring 20's leading to the Great Depression.

radiant energy is a form of kinetic energy only.(a)

an informal structure in a bureaucracy would be something like so-called "office politics". where there's a formal structure set up for the organization, but then an informal subculture as well that has a way of organizing the bureaucracy further. this can be positive because it sets up an added degree of organization, albeit informal, within the bureaucracy.