We cannot live without water.We use water to do many things every day-to take a bath, to wash things, to cook our food, and to do many other things.We drink about eight glasses of water a day.We may drink tea or coffee, but the have water in them.A big man drinks more than eight glasses a day when the day is hot an when he is working hard.

There is water in almost everything that we drink.We also get water in other ways .There is water in almost all  of the food that we eat.It is strange  to think that a piece of  bread contains water, but it does.

Without water or food that contains water, a person will die in about a week.Without water , animals and plants will die, too.Without water, nothing can live.

Water is  a good friend; it helps us in many ways.Irrigation is one of them.When we irrigate.we bring water to fields which need it.Even in the parts of Indonesia where there is a great deal of rain, farmers need to irrigate  part of the time, because there is not always rain when they need it.And some fields need a lot of water; our wet rice fields are an example.

For irrigation we often need dams.People have built dams since the earliest times.There is too little water during the dry season, and there is too much water  during the wet season.Dams store water when there is rain.We use that water for our plants when there is little or no rain.We use that   water for our plants when there is little or no rain.In this way, there is water for the plants all of the time.Each Plants stores, too, but it is too little for the needs of the plant during the dry season.

Dams also store the water that many of our towns and cities use for all of our needs-we drink it ; we wash with it; we use it in our factories; we swim in it; we use it every where.

Fifty years ago, there were only a few dams.Then water could be very dangerous.In those days, when rainy season came there were many floods.These floods destroyed many houses, plants, animals, and people every years.Now, in many places, dams hold the rain water, so that it does not destroy things any more.

Dams can also give us electricity.factories use electricity all of the time.We use it for the lights in our homes, for our radios, and for many other things.

Dams make water a very good friend of people.They can give us more food, more factories, more electricity,  and, we seriously hope, they can give us protection from floods.Only large dams which are more than thirty metres high can produce electricity well.There are almost two thousand dams this large or larger in the world.People are building more of them now, and they are going to  build more of them in the future.


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