The British economy was already weak after WW1, so when the US stock market crashed, taxes were put on foreign imports. The value of British exports were halved, and many areas went into poverty (unemployment more than doubled) so Britain devalued their pound in 1931, which made goods cheaper and improved their economy.
The president would be selected if no candidate were able to reach the needed votes in the electoral college by the House of Representatives, Each state gets one vote. Hope it helps
Quaternary industry Is the sector of industry that involves the intellectual services: research, development, and information. It is considered the fourth basic industry.