1 Subjects: “...population density...”

2 Subjects: “...population structure...”

3 Subjects: “...population structure...”

4 Subjects: “...older population...”

5 “...Around 10% of the global population lives in the world's coastal zones, mostly concentrated...”

6 “... significant population growth and changing climate conditions. Aquifer assessment in a transboundary setting...”

7 “...As the most heavily populated areas in the world, coastal zones host the majority and some...”

8 “... between population, resources, ecology, environment, and economic and social development in the PLES...”

9 “..., and the population living in karst areas is approximately one billion. Strong karstification makes the soil...”