“For a sole reason: stopping Russian expansion. the Russian empire could've easily defeated the ottomans, for a number of strategic and military reasons. Britain and France (and some others like the kingdom of Sardinia) entered the war so that Russia would lose, and fall back to its borders.” Need more explanation?
Answer:
When prices fell during World War I, farmers tried to produce even more to pay their debts, taxes and living expenses. In the early 1930s, prices dropped so low that many farmers went bankrupt and lost their lands and farms.
It would support commuting to work, transportation of foods to cities, transportation of raw materials to factories and produced goods out of factories, and transportation as a whole. Hope this helps.