Which countries were involved in the central powers alliance? a. germany and austria-hungary b. germany, austria-hungary, and russia c. russia and france d. russia, france, and great britain

these conditions long with a short growing season made farming difficult.

explanation:

the north has a climate of warm summers and snowy cold winters. the terrain is rocky, hilly, and not good for farming.

a system of cooperative federalism emerged, as the powers of the federal government expanded.