How has the elderly dependency ratio changed in Japan in the last 20 years?

While both countries have high life expectancies, Japan's eighty-five-year life expectancy is among the world's longest, leading to a higher elderly dependency ratio in 2017. Additionally, the countries vary in their views of international migration as a population stimulus.

places of higher salinity. there are parts of the ocean where hardly any rain falls but warm dry winds cause lots of evaporation. this evaporation removes water – when water vapour rises into the atmosphere, it leaves the salt behind, so the salinity of the seawater increases. this causes the seawater to become denser.

answer; native americans who sometimes actively impeded railroad construction; physical obstacles like rivers and canyons, and