The top flying ace of World War I was manfred von Richthofen hailed from Germany.
In subsistence farming, planting decisions are made based on a family's needs, whereas in cash-crop farming, farmers plant strategically to capitalize on demand and market prices. While some farmers grow crops for the sole purpose of feeding their families, others engage in both cash crop and subsistence farming
Answer: Unions in the 1920s were harmed by rising wages which made it harder to attract new members.
Explanation: Give me the brainiest