Short assignment on sex industry

 https://www.youtube.com/watch?v=aAWVqVMz-7k

Based on the above clips, answer the following questions:
(1)  How did the growth in the sex industry increase with the advent of the oil industry in North Dakota?
(2)  How did the oil in North Dakota lead to an increase in drug and sex trafficking and sex crimes and drug abuses? Use substantive evidence from the clip.