SORU: aşağıdaki parçaya göre cevaplayınız
One concludes from the passage that efficient management of the water resources of the world is essential ----.
Today the world faces a growing crisis over the
management of its great rivers. In recent years, most
of the great rivers in the world, such as the Yellow
River in China, the Indus, the Colorado, and the Nile,
have all periodically run empty because mankind has
used their every last drop. Indeed, there is a huge
unmet demand in the world for water. More than a
billion people have no access to clean drinking water,
and while it is hoped that this figure will be halved by
2015, nobody is sure where the water will come from.
With today's trends, one-third of the world population
will be seriously short of water by 2025. Politicians in
China, India, Pakistan, Egypt and other waterstressed
countries want their water engineers to find
solutions – and fast.