Which of the following often develops along country borders when cultures share two languages?

The increase of pollutants from in mexico has raised concerns about garage to health and the environment

Fertility and mortality rates are higher in more developed nations.

Plz answer ! find the alps. what countries and country borders intersect this major mountain range? which borders seem to be defined by the edges of the mountains? which borders seem to be defined by the edges of the mountains? which borders cut across the mountains?