Question

why is cooperation over water resources, like in the nile basin initiative, important for future generations?
it keeps water resources limited to certain countries.
it allows countries to use as much water as possible today.
it helps countries save money by avoiding environmental projects.
it ensures that clean water is available for everyone now and in the future.

Explanation:

Cooperation over water resources aims at sustainable - use and equitable distribution, ensuring clean water availability for present and future populations. The other options are either contrary to the spirit of cooperation (limiting resources to certain countries, over - using water today) or misinterpret the purpose (saving money by avoiding environmental projects).

Answer:

It ensures that clean water is available for everyone now and in the future.