Scientists have isolated the two different forms of water molecule for the first time. Water molecules were known to exist as two distinct "isomers", or types, based on their slightly different ...

Plants store 786 km³ water and cycle it back to the atmosphere in 5–18 days. New study reveals their critical role in the ...

It is in aquatic systems that the inorganic mercury is transformed into the more toxic form ... water and sanitation coverage. Water Quality Outlook [- 1.40 MB] United Nations Environment ...