Answer: temperature, precipitation and relative humidity
Explanation:
There’s not enough information to solve this question
I would say that one reason is since developed countries are so advanced in every aspect...they have no time to reproduce, so there are no replacements for old people, hence the increase in the average population age.
type ''How did geographical features of the country impact Japan's growth and expansion'' and click the 2nd site which is a file with all the info you need! i wish I can send it to you but I don't know how