Trang chủ » Question – Answer Quiz » Our demand for water is constantly increasing. Every year there are more and more people in the world. Factories produce more and more products and need more and more water. We live in a world of water. But almost all of it – about 97% – is ___(1)___ the oceans. This water is too salty to be used for drinking, farming, and ___(2)___. Only about 3% of the world’s water is fresh. Most of this water is not easily available to man because it is locked in glaciers and ice. There is as much water on earth today as there ever was or will ever be. Water ___(3)___is used and reused over again is never used up. Although the world has plenty of ___(4)___ water, some regions have a water shortage. Rain does not fall evenly over the earth. Some regions are always too dry, and others too wet. A region may suddenly have a serious ___(5)___ and another region may have flood with too much rain.

    Question – Answer Quiz

    Our demand for water is constantly increasing. Every year there are more and more people in the world. Factories produce more and more products and need more and more water. We live in a world of water. But almost all of it - about 97% - is ___(1)___ the oceans. This water is too salty to be used for drinking, farming, and ___(2)___. Only about 3% of the world's water is fresh. Most of this water is not easily available to man because it is locked in glaciers and ice. There is as much water on earth today as there ever was or will ever be. Water ___(3)___is used and reused over again is never used up. Although the world has plenty of ___(4)___ water, some regions have a water shortage. Rain does not fall evenly over the earth. Some regions are always too dry, and others too wet. A region may suddenly have a serious ___(5)___ and another region may have flood with too much rain.

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