Why do some main- sequence stars turn into a giant and some turn into a supergiant

Ascenario that doesnt  include any modern objects like electricity

Summer months are the wettest.

The oldest is  found in the  west pacific and north-west atlantic. 

Many foreign companies buy/build hotels in areas therefore most of the profit from tourism goes to these companies rather than the local economy or local people. 
also, these foreign companies might only employ foreign workers with experience meaning they receive more pay whereas local people would be employed for low skilled jobs and lower pay. 

thats all i can think hope it : )