How is Greece cut off from the rest of the continent?

Directions: Read the passage and answer the following question.

Although Greece (or Hel´las) is only half as large as the State of New York, it holds a very important place in the history of the world. It is situated in the southern part of Europe, cut off from the rest of the continent by a chain of high mountains which form a great wall on the north. It is surrounded on nearly all sides by the blue waters of the Med-it-er-ra´ne-an Sea, which stretch so far inland that it is said no part of the country is forty miles from the sea, or ten miles from the hills. Thus shut in by sea and mountains, it forms a little territory by itself, and it was the home of many a noted people.
The history of Greece goes back to the time when people did not know how to write, and kept no record of what was happening around them. For a long while the stories told by parents to their children were the only information which could be had about the country and its former inhabitants; and these stories, slightly changed with every new teller, grew more and more extraordinary as time passed. At last they were so changed that no one could tell where the truth ended and fancy began.
The beginning of Greek history is therefore like a fairy tale; and while much of it cannot, of course, be true, it is the only information we have about the early Greeks. It is these strange fireside stories, which used to amuse Greek children so many years ago, that you are first going to hear.
About two thousand years before the birth of Christ, in the days when Isaac wanted to go down into Egypt, Greece was inhabited by a savage race of men called the Pe-las´gi-ans. They lived in the forests, or in caves hollowed out of the mountain side, and hunted wild beasts with great clubs and stone-tipped arrows and spears. They were so rude and wild that they ate nothing but raw meat, berries, and the roots which they dug up with sharp stones or even with their hands.
For clothing, the Pelasgians used the skins of the beasts they had killed; and to protect themselves against other savages, they gathered together in families or tribes, each having a chief who led in the war and in the chase.