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(Click for frequent words.) 66 mega deltas 63 Ganges Brahmaputra 63 deltaic 60 freshwater ponds 60 rivers 59 mightiest rivers 59 inundate coastal 59 ocean basins 58 freshwater habitats 58 deltas 58 rivers estuaries 58 Ganges Indus 58 lying deltas 58 increased storminess 57 Meghna rivers 57 Seagrasses 57 coastlands 57 lowland forests 57 Indus Ganges 57 peat swamps 57 seacoasts 57 lying river deltas 56 freshwater lagoons 56 freshwater marshes 56 river valleys 56 freshwater swamps 56 alluvial plain 56 Yangtze rivers 56 tidal estuaries 55 coastal inundation 55 Overflowing rivers 55 glacier melts 55 Ganges delta 55 Brahmaputra rivers 55 deforestation desertification 55 receding glaciers 55 Giant salvinia 55 tropical coral reefs 54 bays estuaries 54 polar oceans 54 abyssal plain 54 floods droughts heatwaves 54 deepwater corals 54 subglacial lakes 54 glaciers melt 54 salinization 54 river basins 54 Mangrove forests 54 sandy shorelines 54 virgin rainforests 54 oxbows 54 Coral reefs 54 eroding shorelines 54 glacial lakes 53 Tonle Sap lake 53 alluvial plains 53 coral reefs 53 saltwater marshes 53 estuaries 53 calderas 53 freshwater snails 53 glaciers retreated 53 lakes 53 Mekong basin 53 ecoregions 53 upwellings 53 Subduction zones 53 Harmful algal blooms 53 coastland 53 biodiverse regions 53 decaying vegetation 53 Gizzard shad 53 saltwater estuaries 53 temperate forests 53 dense rainforests 53 freshwater ecosystems 53 snub nosed monkeys 53 wetland ecosystem 53 karsts 53 deplete oxygen 52 bottomland forests 52 headwater stream 52 Sandbars 52 severe droughts 52 coastal ecosystems 52 saline intrusion 52 Saltcedar 52 Little Assawoman Bay 52 mud flats 52 freshwater lakes 52 glaciers 52 Tropical rainforests 52 toxic algal blooms 52 quadrillion gallons 52 Freshwater mussels 52 lowland forest 52 tributary rivers 52 Ganga Brahmaputra 52 lowlands 52 muddy swamps 52 Grass carp 52 Melting glaciers 52 Ganges Brahmaputra Meghna 52 cyclonic storms 52 Brahmaputra River 52 fragile marine ecosystems 52 wetland ecosystems 52 Pseudo nitzschia 52 icesheets 52 flood plains 52 permafrost degradation 52 bays inlets 52 brackish marsh 52 tidal bores 52 palm fringed shores 52 Gangetic delta 52 glacial melt 52 intertidal mudflats 52 waterfowls 52 corals sponges 51 Boreal forests 51 tectonic plate boundary 51 turbidites 51 Lake Balkhash 51 tropical savannah 51 Sundarbans delta 51 sawgrass prairies 51 backwater lakes 51 coral atolls straddling 51 oligotrophic 51 ecoregion 51 sub glacial lakes 51 peat swamp forests 51 Xe Bang Fai 51 acidic oceans 51 isopods 51 Mesopotamian Marshlands 51 Lophelia 51 freshwater 51 flyways 51 Warmer seas 51 Shiretoko Peninsula 51 benthos 51 temperate rainforest 51 biodiversity hotspot 51 biodiverse ecosystems 51 oceanic islands 51 coastlines 51 mighty Brahmaputra 51 streams creeks 51 prairies deserts 51 Clouded leopards 51 deep convective clouds 51 permafrost melts 51 coastal estuaries 51 inundations 51 tropical subtropical 51 inlands 51 glacial meltwater 51 upland meadows 51 cypress forest 51 Zooplankton 51 Irrawaddy river 51 prairie potholes 51 Huaihe river 51 Pygmy elephants 51 coral reefs mangroves 51 subduction zone earthquakes 51 algal mats 51 mountain glaciers 51 towering icebergs 51 dammed rivers 51 tidal inlets 51 ecosystems 51 droughts heatwaves floods 51 oceans 51 strait separating 51 sea scorpions 51 glaciers recede 50 biologically diverse regions 50 Brackish water 50 frequent droughts 50 floodplains 50 Water hyacinth 50 swamps marshes 50 heatwaves droughts floods 50 floods ravage 50 trembling aspen 50 mangrove forests 50 flood basalts 50 mosquito infested swamps 50 tributaries 50 Nomura jellyfish 50 cyanobacterial blooms 50 rocky reefs 50 glacier melt 50 freshwater fishes 50 sandy bottoms 50 tropical jungles 50 amphipods 50 Yangtze Yellow 50 freshwater mussel 50 eutrophic 50 undersea volcanoes 50 Himalaya Mountains 50 salination 50 intertidal 50 riverways 50 landmass 50 Severe droughts 50 Wadden Sea 50 Sea otters 50 Poyang Lake 50 seagrass meadows 50 Seamounts 50 subtropical climates 50 Algae blooms 50 Ciliwung River 50 Powerful quakes 50 tectonic plates converge 50 mangroves coral reefs 50 Tuvalu Kiribati 50 limestone karsts 50 upland forests 50 fertile plains 50 Amundsen Sea 50 Dongting Lake 50 heatwaves floods 50 Warmer oceans 50 coastal lowlands 50 tidal salt marsh 50 Siltation 50 heavier rainfalls 50 navigable rivers 50 bottomland forest 50 polynyas 50 Algae bloom 50 Thorthormi 50 oxbow lakes 50 Chilika Lake 50 alluvial soil 50 subarctic regions 50 Sulu Sulawesi 50 Golfo Dulce 50 Hammerhead sharks 50 sediments deposited 50 Waning Ida downpours 50 estuaries bays 50 saline soils 50 Dianchi Lake 50 salinated 50 planktons 50 Yangtze Mekong 50 topsoil erosion 50 estuarine habitat 50 marine biota 50 upwelling currents 50 overflowing menacingly 50 hydrological cycles 50 migratory pathway 50 brackish waters 50 droughts floods storms 50 Polluted runoff 50 comb jellies 50 freshwater mussels 50 coral ecosystems 50 saltmarshes 50 Plesiosaurs 49 sandstone bluffs 49 delicate ecosystems 49 gravelly sandy 49 aquatic invertebrates 49 worsening droughts 49 Densely populated 49 wintering ducks 49 river drainages 49 subduction zone earthquake 49 Yangtze basin 49 reefs 49 coastal wetlands 49 fringing reef 49 geologic faults 49 marshy wetlands 49 Shoal Lakes 49 Qinghai Tibetan plateau 49 Soil erosion 49 Irrawaddy dolphin 49 Barataria basin 49 Mariana Arc 49 narrow ravines 49 freshwater wetlands 49 Lake Alaotra 49 reef ecosystems 49 tidal creeks 49 pelicans nest 49 Haihe 49 underwater volcanos 49 shallow weedy 49 tidal estuary 49 tropical rainstorms 49 Deluges 49 Pallid sturgeon 49 coniferous forests 49 virtually unpoliced 49 freshwater aquifers 49 heatwaves floods droughts 49 dabbling ducks 49 streamside habitat 49 waterways 49 freshwater marsh 49 stony corals 49 coccolithophores 49 icebergs calving 49 freshwater aquifer 49 Sumatra Kalimantan 49 ecologies 49 croplands 49 coral islets 49 creeks rivers 49 equatorial forests 49 estuarine habitats 49 nutrient inputs 49 shad herring 49 Severe drought 49 seabeds 49 hypoxic zone 49 biodiversity hotspots 49 subtidal 49 Basking sharks 49 Warmer climates 49 glacially carved 49 tadpole shrimp 49 estuarine ecosystems 49 False killer whales 49 Qinghai Tibet plateau 49 plantlike bacteria 49 permafrost thaws 49 coralline 49 cypress swamps 49 cordgrass 49 Leatherback turtle 49 spawning aggregations 49 snail kites 49 seashores 49 heatwaves droughts 49 deciduous forests 49 savannah grasslands 49 Huge swathes 49 Shrinking glaciers 49 flash floods landslides 49 bottomland hardwoods 49 arid Sahel 49 thawing permafrost 49 mighty Mekong 49 aquatic insect 49 migratory flyway 49 sandy ridges 49 drylands 49 candlefish 49 Irrawaddy dolphins 49 riparian zones 49 marshy wetland 49 gastropods 49 abyssal plains 49 Gangetic dolphins 49 boreal regions 49 killifish 49 subalpine meadows 49 Tidal waves 49 biosphere reserves 49 jellyfish swarms 49 subtropical regions 49 inter tidal 49 Nakai Plateau 49 reef habitats 49 Saltwater intrusion 49 severe droughts floods 49 rills 49 Landslips 49 Tidal surges 49 Kimbe Bay 49 Vast stretches 49 crabs snails 49 seamounts 49 subtropical wilderness 49 voracious predators 49 Thailand Laos Cambodia 49 common murres 49 seawater intrusion 49 semiarid regions 49 Gangotri glacier 49 Heavy rainfalls 49 coral triangle 48 rocky intertidal 48 disappearing glaciers 48 lying atolls 48 Meghna basin 48 migratory shorebirds 48 riparian habitats 48 volcanic archipelago 48 Drenching storms 48 Amur river 48 microbialites 48 Huaihe 48 Yangtze River Basin 48 Tonle Sap Lake 48 Ice floes 48 Coral reef 48 Genghis Khan conquered 48 arid semi arid 48 cyclones droughts 48 Kotzebue Sound 48 wetlands marshes 48 hotsprings 48 heavily polluted 48 proboscis monkeys 48 equatorial waters 48 beaver lodges 48 Least terns 48 icecaps 48 cultivatable land 48 Saharan Desert 48 gopher frogs 48 Hindu Kush Himalayan 48 Aquifers 48 arid regions 48 cedar glades 48 peat swamp forest 48 mangrove vegetation 48 seagrasses 48 Acidification 48 snail kite 48 bottomland hardwood forest 48 Himalayan river basins 48 mangrove habitats 48 icefields 48 brackish marshes 48 thawing tundra 48 refugia 48 prairie pothole region 48 Endangered sea turtles 48 Leizhou Peninsula 48 eastern Dakotas 48 spoon billed sandpipers 48 coastal mangrove forests 48 floods droughts 48 cultivatable 48 temperate latitudes 48 toxic algae blooms 48 melts glaciers 48 Droughts 48 Prolonged drought 48 Locust swarms 48 seafloor habitats 48 salinity 48 Chenab rivers 48 volcano spews lava 48 gyres 48 Yellow Huaihe 48 drenching springs 48 steamy jungles 48 Oyster reefs 48 Walruses dive 48 orangutan populations 48 wild sockeye salmon 48 ecologically sensitive wetlands 48 limestone bluffs 48 Waterspouts 48 biologically diverse 48 mangrove islands 48 infertile soils 48 shorelines 48 Threadfin shad 48 fringing reefs 48 bleached coral 48 Hine emerald dragonfly 48 midlatitude 48 lush tropical rainforests 48 Dredged 48 alluvial soils 48 Deccan Traps 48 Yangtze river 48 snowcaps 48 watertable 48 waterbird species 48 phytoplankton blooms 48 Prolonged droughts 48 glacial retreat 48 Birimian Greenstone Belt 48 salinisation 48 tributary streams 48 Chaohu Lake 48 coral formations 48 grassy plains 48 sea 48 Haihe River 48 Gangetic 48 marshes swamps 48 Vilcanota river 48 tectonic plate movements 48 warmer moister 48 lesser flamingos 48 tropical glaciers 48 wetland habitat 48 forested watersheds 48 Louisiana coastal marshes 48 aquatic fauna 48 freshwater aquariums 48 tidewaters 48 arid Sahel belt 48 muhly 48 karst formations 48 river catchments 48 seagrass beds 48 Huai river 48 Whale sharks 48 shallow continental shelf 48 seafloors 48 riverine forests 48 blackwater streams 48 lemur species 48 floods heatwaves 48 Mekong Basin 48 freshwater streams 48 montane forests 48 Volcanic eruptions 48 aquatic fern 48 dormant volcanoes 48 western grebes 48 coral atolls 48 intertidal zone 48 bald cypress trees 48 Barataria Basin 48 steaming jungles 48 pteropods 48 rocky coves 48 Floods landslides 48 freshwater estuaries 48 Floods landslides kill 48 comb jelly 48 tidal rivers 48 limestone formations 48 pristine coral reef 48 coastal bays 48 Xijiang River 48 waterbird populations 48 dry deciduous forests 48 oceanic plates 48 archipelagos 48 freshwater impoundments 48 Sei whales 48 forested uplands 48 anemones worms 48 wetland vegetation 48 endangered Irrawaddy dolphins 47 rocky shorelines 47 desertified 47 Appy Sluijs 47 beech forests 47 Atchafalaya River Basin 47 Hotter drier 47 upland habitats 47 forests meadows 47 Beas rivers 47 salmon spawning grounds 47 seismically active zones 47 giant squid Architeuthis 47 subtropical climate 47 creeks streams 47 seaboards 47 Leatherback turtles 47 Swollen rivers 47 Floods landslides droughts 47 Lake Mainit 47 Loggerhead turtles 47 melting glaciers 47 Ice jams 47 mammals reptiles birds 47 Mekong river 47 mangrove shorelines 47 carbon fluxes 47 mesic 47 biologically diverse ecosystems 47 branching corals 47 Kinabatangan River 47 landmasses 47 underground aqueducts 47 floods 47 Himalayan highlands 47 aquaculture ponds 47 Whales dolphins 47 aquatic ecosystems 47 Kapuas River 47 mudsnails 47 yellow anacondas 47 Fishing trawlers 47 freshwater dolphin 47 Steep slopes 47 finless porpoises 47 cypress swamp 47 megadisasters 47 Extinctions 47 icebergs scour 47 aquatic grasses 47 recurrent droughts 47 Coconut palms 47 hummocky 47 glacial moraines 47 piñon trees 47 rodent borne diseases 47 unfished 47 oceanic trenches 47 tectonic fault 47 Tumen rivers 47 tidal marshes 47 monsoon floods 47 mangroves 47 Indus delta 47 Roadless areas 47 waterfowl habitats 47 Greenland Antarctica 47 faunas 47 Lancang River 47 glacier retreat 47 warmer wetter winters 47 karst limestone 47 Sihar Simanjuntak 47 rare Irrawaddy dolphins 47 estuarine waters 47 parched farmland 47 wetlands 47 embayments 47 Albemarle Pamlico 47 lowland rainforests 47 landlocked Himalayan 47 Shivaliks 47 juvenile salmonids 47 melt glaciers 47 Quake Strikes 47 migratory waterbirds 47 steep gorges 47 dry riverbeds 47 Lancang Mekong 47 Tsangpo 47 iceberg calving 47 heavily deforested 47 taiga forest 47 Indus basin 47 coldwater fish 47 conifer forests 47 Inuit Eskimos 47 pristine coral reefs 47 marshes 47 retreating glaciers 47 invertebrate populations 47 peat soils 47 breeding waders 47 landlocked Caspian Sea 47 habitats 47 mud volcanoes 47 Klamath chinook 47 manmade reservoirs 47 bubbling brooks 47 arid lands 47 mussel species 47 walrus polar bears 47 Boll weevils 47 Floods engulf 47 Mud Volcano 47 Xiangjiang River 47 blood Spiridonov 47 Kelp forests 47 subduction zones 47 damming rivers 47 hyper saline 47 Atchafalaya rivers 47 planktonic 47 eastern seaboards 47 freshwater fish 47 oysters shrimp crabs 47 shallow reefs 47 Carteret Islands 47 Taklamakan Desert 47 snails slugs 47 Great blue herons 47 famous Eiger Moench 47 bacterial mats 47 phytoplankton bloom 47 tropical savanna 47 brackish Lake Pontchartrain 47 Algal blooms 47 Yarlung Zangbo 47 Yaque del Norte 47 tidal surges 47 diatom species 47 Horseshoe crabs 47 Moderate quake jolts 47 Tibetan Plateau 47 spillway diverts river 47 Coral bleaching 47 Sahelian countries 47 mussel populations 47 mangrove shoreline 47 eiders 47 emergent vegetation 47 tectonic belts 47 Taklimakan 47 sandpipers plovers 47 rivers lakes 47 Yarlung Zangbo River 47 harsher climates 47 elkhorn corals 47 wetlands floodplains 47 inland 47 geologically unstable 47 rainwaters 47 Minjiang River 47 contend loosens soils 47 freshwater lakes rivers 47 cypress tupelo swamp 47 Kenya Ethiopia Eritrea 47 Peat bogs 47 glaciers retreating 47 Sabal palms 47 riversides 47 Iguazu falls 47 montane forest 47 aquifer depletion 47 Diporeia 47 tectonically active 47 Phra Thong 47 tributary creeks 47 Kurigram Gaibandha 47 streamside forests 47 mountainous topography 47 droughts heatwaves 47 nonnative invasive 47 coldwater streams 47 shrinking Aral Sea 47 icecaps melt 47 freshwater invertebrates 47 intensively cultivated 47 Sea squirts 46 melting icecaps 46 tallgrass prairies 46 archipelagic nation 46 salt marsh grasses 46 Earthquake Jolts 46 Aleutian islands 46 plankton blooms 46 sea anemones corals 46 porous limestone 46 kudzu vine 46 reef fishes 46 seasonal cyclones 46 bottomland hardwood forests 46 Seafaring pioneers 46 chlorophyll concentrations 46 Subsistence farmers 46 Floodwaters receded 46 rainfed agriculture 46 limestone outcroppings 46 sedimentary deposits 46 lowland rainforest 46 Assam Meghalaya Nagaland Manipur 46 storm surges 46 freshwater springs 46 Largemouths 46 terrestrial ecosystems 46 salicornia 46 temperate zones 46 parched deserts 46 shortnose sturgeon 46 tabular icebergs 46 Leatherback Turtle 46 Tha Chin 46 OLYMPIC PENINSULA 46 breadbaskets 46 densely populated delta 46 tsunamis 46 Winds howled 46 coulees 46 Sperm whales 46 crustaceans mollusks 46 brooks streams 46 hardhead catfish 46 zooplankton species 46 unusually heavy rains 46 glaciers melted 46 rocky headlands 46 Citarum River 46 Hydroelectric dams 46 Tarim River 46 Ayeyarwady Delta 46 Eelgrass 46 migrating shorebirds 46 tidal pools 46 extinct volcanoes 46 terrestrial mammals 46 Laramidia 46 coastal upwelling 46 willow thickets 46 floods droughts desertification 46 cichlid fishes 46 white tailed ptarmigan 46 peat swamp 46 mollusks crustaceans 46 Phragmites australis 46 Ghoramara island 46 hardwood swamps 46 ferry capsizes 46 multiuse trails waterfalls 46 rainfed crops 46 limestone karst 46 sea turtle species 46 riverbanks 46 microscopic creatures 46 unlogged forests 46 navigable canals 46 Galapagos penguin 46 Domoic acid neurotoxin 46 Brine shrimp 46 Eric Hoffmayer 46 canals 46 rapidly urbanising 46 sealevel 46 pigeon guillemots 46 Ozark Plateau 46 Tropical cyclones 46 geohazard 46 Wilson phalaropes 46 Ogallala aquifer 46 mangrove swamps 46 prolonged droughts 46 marine ecosystems 46 violent seismic upheavals 46 wadeable 46 Great Barrier reef 46 Arctic Coastal Plain 46 biodiverse 46 limber pine 46 Devastating floods 46 salt marshes 46 Qiantang River 46 Ninglick 46 apple snail 46 limestone caves 46 supercolony 46 limestone outcrops 46 Giant Salvinia 46 chemosynthetic 46 migratory corridors 46 lungless salamander 46 lodgepole pine forest 46 auklets 46 Ramsar Site 46 crustal movements 46 Mountainous terrain 46 migrating northward 46 hookworm infection 46 mixed conifer forests 46 sparse vegetation 46 megafloods 46 Salvano Briceno director 46 Arctic icecap 46 critically endangered endangered 46 earthquake jolts 46 meltoff 46 rocky ridges 46 storms floods droughts 46 Burkina Faso Cape Verde 46 mountain ranges 46 megadrought 46 Quake Hits Off 46 polar bears walruses 46 coral reef ecosystems 46 engorged rivers 46 bull kelp 46 lamprey larvae 46 steering currents 46 volcanic mudflow 46 dwelling organisms 46 beaver ponds 46 seismologically active 46 billabongs 46 riverbeds 46 highly erodible 46 headwater 46 Arsenic contamination 46 Mangrove swamps 46 mangrove fringed 46 Galapagos volcano erupts 46 Longmen Shan fault 46 Invasive mussels 46 glowworms 46 Pardeeville dam 46 tropics 46 scrub shrub 46 headwaters 46 Lancang 46 inland bays 46 Streamflows 46 forams 46 encroaching deserts 46 lahar flows 46 Late Paleozoic 46 eelgrass beds 46 Copter crashes 46 coastal waters 46 Citrus greening 46 precious coastal marshes 46 Brahmaputra Jamuna 46 unusually heavy rainfalls 46 mountain snowpacks 46 eel grass 46 streambanks 46 uplake 46 fertile soils 46 arable farmland 46 volcanoes erupt 46 peat lands 46 goby fish 46 Satabhaya 46 Lampreys 46 lava flowed 46 tectonic plate boundaries 46 Hindu Kush Himalaya 46 Floods ravage 46 Ferry capsizes 46 marine biodiversity 46 semi arid Sahel 46 karst topography 46 groundwaters 46 bass crappie bluegill 46 semi arid 46 melting icebergs 46 Typhoon Kujira 46 seals sea lions 46 biota 46 waterlogged dikes 46 Cyanobacteria 46 grassy savannah 46 bottomland hardwood 46 redband trout 46 Torrential monsoon rains 46 dikes dams 46 single celled creatures 46 chestnut oaks 46 Pygmy rabbits 46 surf scoters 46 subduction earthquakes 46 Excess nutrients 46 McMurdo Dry Valleys 46 Weakened Ernesto 46 cyclones floods 46 harmful algae blooms 46 polar icecap 46 amphibian extinctions 46 savannas 46 coastal marine ecosystems 46 sandbars 46 megacities 46 Chilika lake 46 river 46 Neotropical migrants 46 mighty Yangtze River 46 Ninglick River 46 Corkscrew Swamp 46 Chilka Lake 46 southern supercontinent 46 turbid waters 46 Mosquitoes breed 46 Irrigated agriculture 46 seabird colonies 46 tropical forests 46 brownish haze 46 Atlantic Gyre 46 vernal ponds 46 Quake jolts 46 irrigation canals ponds 46 waterweed 46 Sundaland 46 oshanas 46 Indo Gangetic plains 46 Ulua 46 Longleaf pines 46 cattail marshes 46 shallow aquifers 46 spectacled eider 46 coniferous forest 46 Eastern diamondback 46 PROSSER LAKE 46 Bamboo flowering 46 Aldabra atoll 46 glacial melting 46 oceans coasts 46 pacus 46 Madagascar Mozambique 46 Isles Dernieres