21.  In the best of all possible worlds, no one would be without food and clean water.

22.  By itself, nature can keep the balance and provide plenty of clean water for us.

23.  Local government has not been able to supply clean water from surface sources.

24.  Fuelwood and clean water are growing scarce, topsoil is being washed away, and raw sewage is entering the river in increasing amounts.

25.  As from this year, the criteria for the Europe-wide Blue Flag award, which recognizes beaches with clean bathing water, have been tightened.

26.  Many are living in appalling conditions without clean water and proper sanitation.

27.  Clean water saves more lives than any medicine that can be provided by the human race so far.

28.  She now has clean water from a pump that Mohali her health advisor, helped the village to organise and build.

29.  The clean water can then flow back into the river.

30.  Hands should be washed afterwards in clean water.