Answer:
Youngest: Niger
1. Niger — 50.12% under 15.
Oldest: Japan
Japan has the highest old-age dependency ratio of all OECD countries – there is one person over 65 for every two people between the ages of 20 and 64.
Explanation:
Answer:
Water and the chemicals it contains are constantly being exchanged between the land surface and the subsurface. Surface water seeps into the ground and recharges the underlying aquifer—groundwater discharges to the surface and supplies the stream with baseflow.
Explanation:
The Atlantic Ocean, the Pacific ocean, and the Gulf of Mexico.
