Personally, I think it's because it was simple and free entertainment. Given that there wasn't a taboo around death and watching others die, and it actually being encouraged, like how it was in Anciient Rome, I'd say a lot of people would actually at least try out visiting a gladiatorial contest.
1 is long term because it’s talking about a process that took years. 2 is short term because the population boom was very sudden. 3 is long term because the effect spans centuries.
Well it seems like they can live on land or water, I think the tectonic plates had alot to do with it also.
Answer: commissioners or supervisors.
Explanation: Because They are usually three to five of them and they serve a four year term.