Why might it be important for eu countries to share borders?

for trading purposes.

Explanation: it is important for European Union countries to share borders for trading purposes. Since the European Union, countries aim free movement of goods, services and even human capital, having open borders adds to the ease of trading. Similarly, European Union countries offer privileges to the employees providing them the ease of movement between European Union countries offering them jobs. Moreover, the open border facility also reduces disagreements between those countries .

for e2020. the answer would be some directions from the mountain range so we can find mt. whitney. to locate which direction is north, you should use a   compass. this would not only find mt. whitney, but also becuase of this long paragraph you would get points because it's not like anyone actually reads your work becuase once they read the first sentence it sounds dumb enough to not read becuase i'm not good at answering this but the answer is compass for your benefit.

for e2020 ; -;