… to the mineral class of ‘carbonates and nitrates’, is an essential building block for stony coral skeletons, mussel shells, sea urchins and starfish. The … to the mineral class of ‘carbonates and nitrates’, is an essential building block for stony coral skeletons, mussel shells, sea urchins and starfish. The …

… be reviewed and adapted to the water supply. Measures in crisis situations, such as blocking endangered side waters or introducing unpolluted water from reservoirs, can … be reviewed and adapted to the water supply. Measures in crisis situations, such as blocking endangered side waters or introducing unpolluted water from reservoirs, can …