Leggi il seguente brano sul problema dell'ACQUA ed inserisci in modo corretto nelle parentesi i numeri suggeriti.
Water is essential to life. We should drink at least ( ) litres of water a day. ( ) of the human body is made up of water. Two thirds of our planet is covered by water, but about ( ) of it is in the oceans and is salt water. The rest of the world's water is in rivers, lakes, glaciers and under the ground. Clean water is very important for a healthy life. Unfortunately, ( ) billion people in the world - that's to say one out of ( ) people - still do not have access to it. Contaminated water carries disease; ( ) of illnesses in developing countries are caused by bacteria which people get from water. They are called water-borne diseases. Some, like cholera, come directly from drinking dirty water; others, like malaria, come from organisms living or breeding in water. Safe water for everybody is the target for people all over the world. Water is precious. Help to save it and keep it clean!
INSERISCI: 1,1 - 80% - 66% - 7 - 1,5 - 98%
