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The Sea The first thing to remember is that the sea is very big. When you look at the map of the world you will find there is more water than land. The sea covers three quarters of the world. If you have swum in the sea, you know that it is salty. You can taste the salt. Rivers, which flow into the sea, carry salt from the land into the sea. Some parts of the sea are saltier than other parts. There is one sea, called the Dead Sea, which is very salty. It is so salty that swimmers cannot sink! Fish cannot live in the Dead Sea! The sea can be very cold divers who go deep down in the sea, know this. On the top the water may be warm. When the diver goes downwards, the sea becomes colder and colder. Another thing happens. When the diver goes deeper, the water above presses down on him. It squeezes him. Then the diver has to wear clothes made of metal. But he cannot go very deep. Some people who wanted to go very deep used a very strong diving ship! They went down to the deepest part of the sea in it. They went down to a depth of eleven kilometers! A. Right B. Wrong C. Not mentioned A. Right B. Wrong C. Not mentioned A. Right B. Wrong C. Not mentioned A. Right B. Wrong C. Not mentioned A. Right B. Wrong C. Not mentioned A. Right B. Wrong C. Not mentioned A. Right B. Wrong C. Not mentioned | 
