Answer:
It's important because it's needed to travel whole world and Bermuda as well as purgatory and Kalahari is my favorite map in free fire
A cash crop was things like cotton. it was produced rapidly and it was valuable. they could make tremendous amounts of money in a short period.
It had a very positive impact because the 1920's was when many new technologies were introduced, one example being the the assembly line, which made many industries more productive and profitable.
Hope that helps!