it is remembering however according to of the world health organization one sixth of the earth's population is to say billion people do not access to water which meets basi
It is worth remembering, however, that according to estimates of the World Health Organisation, one sixth of the Earth's population, that is to say, over one billion people, do not have access to water which meets basic, minimal standards of cleanliness.
It is remembering, however, according to of the World Health Organisation, one sixth of the Earth's population, is to say, billion people, do not access to water which meets basic, minimal standards of cleanliness.