The capital of Poland is Warsaw.
The independence or dependence between two people or things
D. Why people like other people.
That's social, not geographic.
The Rocky Mountains are described as younger because the Rocky's are really two mountain chains. The older mountain chain started billions of years ago, and the younger mountain chain pushed the older mountain chain up more, only 60 millions years ago.
Metal would be your answer as it's a permeable substance.
hope it helps!
