Scientists say that in the next twenty-five years of the world's fresh water reserves will be reduced in two times. Fresh water today is about three percent of the total water on earth. Approximately seventy-five percent of the world's fresh water is in icebergs and glaciers, almost all of the remaining fresh water is underground. For man easily available only one percent water, but even with such a small figure that would be enough to fully meet human needs, if all fresh water (and this one percent) was distributed evenly to the places where we live. Today, North Asia, Middle East, most of Africa, North-Eastern Mexico, most of the Western States of America, Argentina and Chile and almost the entire Australian continent have unstable water supply is fresh water. To date, over eighty countries are experiencing a shortage of fresh water. The problem of fresh water every day is becoming more acute. Надеюсь что тебе
1. While travelling in the Crimea, I met your friend.2. I have never visited that place.3.He visited that place last year.4. I have just got a letter from Tom.5.Did you take any photographs while travelling in the south?6. He was abroad five years ago.7.Were you in the Caucasus last year?8.They have left England when he was still a child.9.He has not come back yet.10. Has he gone already?11.When did you see him last?12.I have not seen him for ages.13. His health has improved greatly since I saw him last.14. Have you passed your driving test yet?-Yes, I passed it in May, but I have not bought a car yet.15.He has already moved. He found a nice flat before Christmas and he has been there two years.