Actually the water in Aral Sea isn’t salt.

According to the passage, sea-water can be turned into fresh water by A: heating it up. B: treating it with chemicals. C: taking salt out of it. D: drying it up.

Sea water is not directly used as a coolant for engines because of its （）.

If the greenhouse gas emissions are stopped, the warming of sea water will stop. ( )

How many people are saved from the icy sea water?

More than seventy percent of the water on the earth is sea water.

The Dead Sea is on the border between _______. It is _______ meters below sea level. That is ______ on Earth. The Dead Sea is the _______ large body of water in the world. The area around the Dead Sea has ancient places that _______. _______ in the Dead Sea are used for health treatments. ______ brings many visitors to the area.

Under the same conditions, fresh water evaporates faster than sea water.

In the movie Titanic, What is the main cause for death of the passengers falling into the icy sea water? (   )

How many ships are there in the sea A: With sugar in it. B: With milk in it C: With water in it.