Related by context. Frequent words. (Click for all words.) 58 brackish 55 seawater 54 inter tidal 53 upwellings 53 anoxic 52 reverse osmosis desalination 52 peat swamps 52 clathrates 52 absorbs carbon dioxide 52 salination 51 freshwater 51 watery 51 deplete oxygen 51 gyres 50 carbonic acid 50 subglacial 50 hydrologic cycle 50 rotting vegetation 50 salinity 49 sea 49 estuarine 49 phytoplankton blooms 49 Wadden Sea 49 tidal pools 49 seabeds 49 methane CH4 49 acidify 49 ocean 49 planktonic 49 turbid 49 algal 49 mud volcanoes 49 intertidal 49 seawaters 48 moist soils 48 Lake Alexandrina 48 Namib Desert 48 amphipods 48 sewage effluent 48 mudflat 48 hydrothermal vent 48 submersed 48 decaying vegetation 48 water 48 deltaic 48 plankton blooms 48 intertidal zone 48 reactive nitrogen 48 icecaps 48 Sediments 48 oxygenating 48 silts 48 benthic 48 freshwater marsh 47 hydrological cycle 47 nutrient rich 47 Reverse osmosis 47 lush rainforest 47 gastropods 47 biodegraded 47 sulphate 47 silty 47 brackish water 47 peaty 47 Weddell Sea 47 recharge groundwater 47 warmer wetter 47 mud flats 47 undersea volcanoes 47 estuaries 47 Melting glaciers 47 equatorial waters 47 river deltas 47 freshwater ponds 47 volcanic vents 47 goethite 47 calcareous 46 salt crystals 46 effluence 46 microscopic algae 46 lagoons 46 snorkelled 46 temperate rainforest 46 Acidic 46 basin 46 sediments 46 driest inhabited continent 46 desalinated 46 temperate forests 46 Bothnia 46 sandy 46 blowholes 46 terrestrial ecosystems 46 lagoon 46 tannic acid 46 sandbanks 46 basalt rock 46 salty 46 treated effluent 45 Seawater 45 Warragamba Dam