The Dead Sea lies partly between Israel and Jordan. It is really a lake, not a sea. It is called a sea because its water is salty. In fact its water is four or five times as salty as the water in the oceans of the world. This lake is not as big as the Great Salt Lake in Utah. The Dead Sea is long and 10 miles wide. The Dead Sea lies in a deep valley far below the level of the oceans. The lake is 1,300 feet below sea level.
The Jordan River brings water to the Dead Sea. No stream or rivers flow out of it. It does not get deeper because the water in it evaporates very fast. The climate is so hot and dry that the Dead Sea would get about 15 lower every year if no water were brought to it.
In ancient times travelers told many wild stories about the Dead Sea. There were, they said, never any waves on its surface. The air above it was so poisonous that it killed birds. And anyone who went near it was risking his life. Of course, these stories were not true.
What is the passage mainly about?
A sea.
A lake.
Israel and Jordan.
All of the above.