20 Items: Gas • Fuel • Ozone • Carbon • Fossil • Dioxide • Climate • Habitat • Species • Invasive • Resource • Ecosystem • Pollutant • Adaptation • Atmosphere • Endangered • Greenhouse • Mitigation • Biodiversity • Conservation

20 Items: reuse • energy • reduce • natural • recycle • topsoil • omnivore • renewable • ecosystem • pollution • herbivore • fossilfuel • solarenergy • consumption • nonrenewable • conservation • biodegradable • globalwarming • sustainability • greenhouseeffect

20 Items: prey • soil • cycle • biotic • matter • biomass • abiotic • predator • producer • consumer • herbivore • carnivore • scavenger • nutrients • ecosystem • decomposer • succession • equilibrium • sustainability • photosynthesis

20 Items: biome • fauna • mammal • zoology • ethology • poaching • predator • ecosystem • migration • sanctuary • scavenger • camouflage • endangered • habitation • endothermic • hibernation • ornithology • territorial • biodiversity • conservation

20 Items: earthsci • greentech • renewable • ecosystem • ecoimpact • biodiverse • carbonfoot • geomapping • atmosphere • ecoresearch • ecofriendly • climatehope • weathertech • cleanenergy • greenplanet • climatetech • climatestudy • conservation • oceanography • sustainability

20 Items: tree • fear • voice • school • friend • eclair • skewer • secret • teacher • silence • demerit • healing • vespiary • ingrates • artichoke • marinated • ecosystem • melancholy • impeccable • gelatinous

20 Items: care • flora • fauna • purity • harmony • renewal • ecology • balance • rebirth • serenity • vitality • ecosystem • recycling • renewable • resilience • protection • conservation • biodiversity • preservation • sustainability

20 Items: taiga • tundra • desert • alpine • climate • aquatic • savanna • wetland • estuary • mangrove • ecosystem • grassland • chaparral • coralreef • vegetation • adaptation • terrestrial • biodiversity • temperateforest • tropicalrainforest

20 Items: polar • depot • scott • krill • museum • treaty • awkward • quality • species • natural • whaling • glacier • plateau • drilling • pristine • decision • protocol • ecosystem • enthusiasm • opportunity

20 Items: Birch • Maple • Roots • Trunk • Mulch • Xylem • Willow • Linden • Phloem • Redwood • Compost • Tillage • Chestnut • Sycamore • Deciduous • Nutrients • Ecosystem • Coniferous • Fertilizer • Chlorophyll

20 Items: DATA • FALCON • GLOBAL • MONTHS • FRAGILE • AOTEAROA • DARKNESS • SCOTTBASE • KNOWLEDGE • ICESHEETS • DISCOVERY • ECOSYSTEM • ANTARCTICA • SCIENTISTS • INVESTIGATE • ENVIRONMENT • INSTRUMENTS • STEWARDSHIP • SUSTAINABLE • CONSERVATION

20 Items: bony • phenom • frenzy • talent • corner • dribble • dunking • yelling • scraping • pressure • harmless • shoelaces • ecosystem • pirouetted • recruiting • committing • scholarship • detrimental • expectations • specialization

20 Items: biome • session • decision • illusion • petition • Yanomami • anaconda • obsession • ecosystem • cassowary • aggression • confession • persuasion • indigenous • sustainable • development • subscription • urbanisation • comprehension • deforestation

20 Items: REUSE • RIVER • DARTER • NATURE • REDUCE • STREAM • COEXIST • MUSSELS • PROTECT • RECYCLE • RESTORE • SUSTAIN • CONSERVE • CRAYFISH • COMMUNITY • ECOSYSTEM • POLLINATE • REPURPOSE • GREENBRIER • ENVIRONMENT

20 Items: reuse • toxic • reduce • ecology • erosion • habitat • natural • organic • recycle • wetland • landfill • resource • decompose • ecosystem • pollutant • renewable • disposable • environment • solarenergy • globalwarming

20 Items: FoodWeb • Ecosystem • FoodChain • Symbiosis • Mutualism • Resources • Predation • Structural • Functional • Camouflage • Parasitism • Adaptations • Behavioural • Competition • Commensalism • Extremophiles • Intraspecific • Interspecific • Interdependence • CarryingCapacity

20 Items: reuse • toxic • reduce • ecology • erosion • habitat • natural • organic • recycle • wetland • landfill • resource • decompose • ecosystem • pollutant • renewable • disposable • environment • solarenergy • globalwarming

20 Items: reuse • toxic • reduce • ecology • erosion • habitat • natural • organic • recycle • wetland • landfill • resource • decompose • ecosystem • pollutant • renewable • disposable • environment • solarenergy • globalwarming

20 Items: reuse • toxic • reduce • ecology • erosion • habitat • natural • organic • recycle • wetland • landfill • resource • decompose • ecosystem • pollutant • renewable • disposable • environment • solarenergy • globalwarming

20 Items: ferry • canary • cymbal • pyramid • pyjamas • bursary • library • journey • lullaby • equator • industry • cyclical • hysteria • auxiliary • gymnasium • ecosystem • demography • psychology • distinctive • deforestation

20 Items: Solar • Planet • Energy • Matter • Algebra • Culture • Biology • Decimals • Latitude • Invention • Fractions • Ecosystem • Longitude • Experiment • Atmosphere • Government • Electricity • Measurement • Constitution • Photosynthesis

20 Items: atom • neon • xenon • carbon • energy • element • foodweb • glucose • organic • digital • molecule • periodic • nitrogen • chemical • reaction • ecosystem • dissection • heavymetals • respiration • photosynthesis

20 Items: Prey • Mammal • Insect • Scales • Talons • Reptile • Habitat • Predator • Feathers • Omnivore • Amphibian • Nocturnal • Ecosystem • Migration • Carnivore • Herbivore • Camouflage • Vertebrate • Endangered • Hibernation

20 Items: Space • Orbit • Storm • Earth • Energy • Matter • Fossil • Magnet • Volcano • Seasons • Animals • Weather • Planets • Gravity • Habitat • Ecosystem • Scientist • Experiment • Hypothesis • Microscope

20 Items: Plain • River • Ocean • Human • Region • Valley • Desert • Climate • Plateau • Glacier • Equator • Culture • Landform • Mountain • Latitude • Physical • Geography • Elevation • Ecosystem • Freshwater

20 Items: Green • Reuse • Carbon • Energy • Reduce • Future • Climate • Compost • Habitat • Balance • Renewable • Recycling • Ecosystem • Resources • Emissions • Pollution • Environment • Conservation • Biodiversity • Preservation

20 Items: BACTERIA • BIOSPHERE • NUTRITION • ECOSYSTEM • BLACKHOLE • CHROMOSOME • MICROSCOPE • EXPERIMENT • RESPIRATION • NUCLEICACID • FOSSILFUELS • CHLOROPHYLL • MITOCHONDRIA • IMMUNESYSTEM • BIOMOLECULES • REFORESTATION • GLOBALWARMING • TRANSPIRATION • PHOTOSYNTHESIS • ENDOPLASMICRETICULUM

20 Items: Benedict • pathogen • Antibody • Ecosystem • Symbiosis • Digestive • Mutualism • Amphibians • Oesophagus • Defecation • Absorption • Biodiversity • Dicotyledons • Commensalism • Assimilation • Phagocytosis • Immunisation • Saprophytism • Invertebrates • Transpiration

20 Items: pang • muted • lurked • greasy • raging • ordeal • Brother • despair • savages • chamber • humanity • palpable • orphaned • ecosystem • delusions • instincts • exhaustion • memorandum • wastelands • nothingness

20 Items: Ethics • Values • Ecology • Science • Frontier • Ecosystem • Community • Pollution • Renewable • Population • Environment • HumanImpact • Stewardship • Ecocentrism • Engineering • Nonrenewable • Conservation • Sustainability • NaturalResources • Anthropocentrism

20 Items: choir • eloquent • gymkhana • condemned • ecosystem • grotesque • spectacle • hydraulic • fictitious • counsellor • colloquial • politicking • controversy • reciprocate • acceleration • architecture • encyclopedia • disqualified • excruciating • chronological

20 Items: wholly • deceive • thorough • eloquent • gymkhana • traveller • ecosystem • grotesque • spectacle • hydraulic • colloquial • technician • independent • politicking • reciprocate • architecture • excruciating • acceleration • chronological • encyclopaedia

20 Items: choir • excite • exceed • awkward • eloquent • recommend • orchestra • technique • excellent • selection • direction • condemned • ecosystem • hydraulic • spectacle • convenient • connection • technician • counsellor • reciprocate

20 Items: colony • oxygen • excite • exceed • concert • awkward • require • purchase • decision • gymkhana • spectacle • ecosystem • hydraulic • condemned • stationery • technician • counsellor • colloquial • politicking • disqualified

20 Items: Biotic • Stroma • Abiotic • Trophic • Nucleus • Vacuole • Limiting • Ribosome • Lysosome • Pyruvate • Community • Ecosystem • Cytoplasm • Thylakoid • Population • Glycolysis • Chlorophyll • Mitochondria • Cytoskeleton • Fermentation

20 Items: FISH • PARK • SWAMP • WATER • BIRDS • SNAKE • RIVER • MARSH • CANOE • HUMID • GRASS • TRAIL • NATURE • RANGER • FLORIDA • WETLANDS • MANGROVE • WILDLIFE • ALLIGATOR • ECOSYSTEM

20 Items: Energy • Births • Foodweb • Molecule • Organism • Increase • Decrease • Ecologist • Ecosystem • Foodchain • Stability • Population • GlacierSea • Competition • Moonjellies • Reproduction • Indirecteffect • Consumerpopulation • Resourcepopulation • Energystoragemolecule

20 Items: Cod • Nets • Tuna • Boats • China • Sharks • Demand • Species • Bycatch • Collapse • Trawling • Reserves • Ecosystem • Fishermen • Population • Technology • Overfishing • Sustainable • Newfoundland • Conservation

20 Items: Native • Change • Unique • Forest • Species • Habitat • Extinct • Fossils • Protect • Survival • Predator • Wildlife • Evolution • Ecosystem • Isolation • Adaptation • Endangered • Scientists • Environment • Biodiversity

20 Items: LIFE • CELL • ORGAN • TISSUE • SYSTEM • GROWTH • BIOLOGY • SPECIES • HABITAT • ORGANISM • FUNCTION • STRUCTURE • EVOLUTION • COMMUNITY • ECOSYSTEM • ADAPTATION • POPULATION • DEVELOPMENT • ENVIRONMENT • REPRODUCTION

20 Items: PENGUIN • ANCHOVY • SARDINE • HERRING • SANCCOB • NAMIBIA • DEMERSUS • PREDATOR • BENGUELA • ECOSYSTEM • FLEDGLING • SPHENISCUS • ENDANGERED • EXTINCTION • OVERFISHING • CONSERVATION • PURSESEINING • REHABILITATION • COUNTERSHADING • CRITICALLYENDANGERED

21 Items: data • soil • creek • river • biotic • living • stream • aquatic • observe • abiotic • evidence • nutrient • organism • duwamish • ecosystem • nonliving • southshore • enviornment • restoration • restoration • rainierbeach

19 Items: prey • beak • raptor • talons • energy • foodweb • barnowl • snowyowl • consumer • producer • omnivore • owlpellet • carnivore • foodchain • ecosystem • nutrients • decomposer • silentswoop • trophiclevel

19 Items: Glacier • Succeed • Whaling • Decision • Economic • Evidence • Icebound • Pemmican • Pristine • Depletion • Ecologist • Ecosystem • Geologist • Longitude • Permanent • Ecotourism • Sufficient • Conatradict • Extravagant

20 Items: rays • host • Prey • plover • whales • sharks • Remora • anemone • leeches • Habitat • Predator • clownfish • crocodile • symbiosis • organisms • Mutualism • Symbiosis • Ecosystem • parasitism • commensalism

19 Items: HOST • IMMUNE • OBESITY • BACTERIA • GUTBRAIN • DIGESTION • INTESTINE • SYMBIOSIS • NUTRIENTS • DIVERSITY • ECOSYSTEM • MICROBIOME • PROBIOTICS • PREBIOTICS • MICROFLORA • ANTIBIOTICS • HOMEOSTASIS • FERMENTATION • INFLAMMATION

20 Items: cycle • plant • fossil • oxygen • energy • foodweb • imprint • consumer • organism • producer • sunlight • interact • omnivore • ecosystem • foodchain • ecosystem • carnivore • herbivore • environmen • carbondioxide

19 Items: Fur • Hawk • Small • Brown • Snake • Eagle • Rodent • Burrow • Weasel • Nature • Coyote • Protect • Habitat • Tunnels • Wildlife • Grassland • Ecosystem • Prairiedog • Underground

20 Items: choir • exceed • reguire • pyjamas • decision • gymkhana • eloquent • recommend • excellent • temporary • recommend • ecosystem • hydraulic • condemned • convenient • technician • calculation • controversy • acceleration • disqualified

19 Items: Food • Leaf • Seed • Stem • Flora • Petal • Native • Nectar • Habitat • Carnivore • Ecosystem • Herbivore • Migration • Adaptation • Endangered • Environment • Pollination • Biodiversity • Metamorphosis

14 Items: ocean • inform • relyon • impact • severe • plants • decline • seafood • sardines • essential • ecosystem • herbivore • definitely • individual

14 Items: ecology • foodweb • organism • nutrient • producer • consumer • ecosystem • foodchain • competition • bioticfactor • abioticfactor • limitingfactor • invasivespecies • carryingcapacity

14 Items: prey • plants • energy • animals • foodweb • predator • consumer • omnivore • producer • foodchain • carnivore • herbivore • ecosystem • decomposer

14 Items: zoo • lab • ocean • biome • monkey • marine • biology • ecology • zoology • dolphin • wildlife • ecosystem • observation • conservation

14 Items: zoo • lab • ocean • biome • monkey • marine • biology • ecology • zoology • dolphin • wildlife • ecosystem • observation • conservation

14 Items: fossil • factor • extinct • product • einstein • division • fraction • ecosystem • president • numerator • government • camouflage • denominator • multplication

14 Items: global • litter • organic • migration • renewable • ecosystem • pollution • endangered • revitalize • sustainable • agriculture • conservation • biodiversity • biodegradable

13 Items: Art • Fun • Value • Explore • Genuine • Community • Ecosystem • Networking • Recognition • Connections • Authenticity • Collaboration • Participation

13 Items: Biotic • Factor • Abiotic • Species • Limiting • Organism • Community • Ecosystem • Biosphere • Population • Competition • Hierarchical • Organization

13 Items: Trust • Safety • Masking • Learning • Inclusion • Belonging • Community • Welcoming • Ecosystem • Breathing • Resources • Meditation • Neurodivergence

20 Items: carbon • biomes • tundra • ecology • foodweb • hydrogen • paradigm • ecosystem • fungicide • herbicide • foodchain • pesticides • fertilizer • environment • insecticide • borealforest • biodiversity • photosynthesis • acidprecipitation • cellularrespiration

20 Items: cause • biotic • effect • change • energy • factors • abiotic • succeed • climate • pyramid • primary • survival • tertiary • consumer • producer • ecosystem • secondary • connecting • population • relationships

20 Items: coral • ocean • sonar • acidic • impact • ashore • trouble • fishing • farming • harmful • species • diverse • survive • offshore • pollution • Caribbean • ecosystem • population • environment • manufacturing

20 Items: hill • cave • path • size • sale • bush • beach • cliff • label • stream • valley • habitat • bargain • receipt • barcode • protest • discount • ecosystem • recycling • waterfall

20 Items: topsoil • aquifer • biomass • recycle • habitat • mineral • landfill • biosphere • depletion • ecosystem • renewable • extraction • fertilizer • agriculture • reclamation • biodiversity • biodegradable • deforestation • sustainability • hydroelectricity

20 Items: atom • plates • fossil • science • sunrays • climate • periodic • research • question • chemical • genetics • cellular • electron • ecosystem • experiment • hypothesis • microscope • metamorphic • ultraviolet • photosynthesis

20 Items: tree • fear • voice • school • friend • eclair • skewer • secret • teacher • silence • demerit • healing • vespiary • ingrates • artichoke • marinated • ecosystem • melancholy • impeccable • gelatinous

20 Items: scene • rushed • echoed • thrive • special • project • revival • clutched • sprouted • nurtured • bustling • trenches • guidance • brimming • concerned • ecosystem • excitement • beneficial • rejuvenated • contribution

20 Items: biotic • biomes • abiotic • autotroph • ecosystem • carbonsink • decomposer • fossilfuel • homeostasis • assimilation • biodiversity • commensalism • conservation • pioneerspecies • climaxcommunity • denitrification • keystonespecies • invasivespecies • primarysuccession • secondarysuccession

20 Items: vieques • ecosystem • puertorico • marinelife • ecotourism • coastalarea • biodiversity • conservation • nightkayaking • glowinthedark • naturereserve • marinebiology • bioluminescence • dinoflagellates • aquaticorganisms • naturalphenomenon • tourismdestination • sustainabletourism • environmentaleducation • environmentalprotection

20 Items: polar • depot • scott • krill • museum • treaty • awkward • quality • species • natural • whaling • glacier • plateau • drilling • pristine • decision • protocol • ecosystem • enthusiasm • opportunity

20 Items: Change • Carbon • Oceans • Energy • Impact • Climate • Warming • Methane • Melting • Glaciers • Heatwave • Emissions • Pollution • Ecosystem • Greenhouse • Temperature • Biodiversity • Conservation • Deforestation • Sustainability

20 Items: REI • Snow • Pass • Gear • Poles • Shoes • Views • Guides • Winter • Trails • Explore • Exercise • December • Mountain • Cascades • Adventure • Evergreen • Ecosystem • Snoqualmie • Experience

20 Items: lianas • wholly • ancient • bettong • fossils • logging • anaconda • petition • physical • piranhas • alkaloids • chemicals • ecosystem • efficient • symbiosis • aggression • persuasion • evaporation • fascinating • urbanisation

20 Items: Boom • Bribe • Erode • Desert • Mining • Permit • Profit • Quartz • Binding • Dredger • Mineral • Activist • Concrete • Corrosion • Ecosystem • Hierarchy • Microchip • Renewable • BlackMarket • Nonrenewable

20 Items: Earth • Trees • Green • Clean • Ocean • Reuse • Nature • Planet • Energy • Reduce • Recycle • Climate • Habitat • Compost • Wildlife • Pollution • Ecosystem • Environment • Conservation • Sustainability

20 Items: ozone • forest • carbon • nature • recycle • climate • habitat • compost • organic • wildlife • pollution • ecosystem • renewable • rainforest • extinction • greenhouse • conservation • biodiversity • deforestation • sustainability

20 Items: solar • compost • recycle • organic • habitat • conserve • emission • windmill • greening • renewable • ecosystem • hydration • pollution • biosphere • rainwater • footprint • plantation • ecofriendly • sustainable • biodegradable

20 Items: nymph • enemy • pigeon • allies • meadows • carrier • Genghis • katydids • critters • harmless • backpack • mountain • ecosystem • lifeguard • orthoptera • messengers • California • grasshopper • fascinating • surroundings

20 Items: Rags • Waste • Reuse • Pants • Jeans • Dress • Shirt • Socks • Reduce • Crafts • Recycle • Climate • Jackets • Scissors • Creative • Ecosystem • Refashion • Pollution • Environment • Conservation

20 Items: Bison • Magma • Caldera • Geysers • Aquifer • Tourism • Grizzlies • Tectonics • Ecosystem • Wildfires • Geothermal • OldFaithful • Supervolcano • Thermophiles • Hydrothermal • Biodiversity • Conservation • ThermalPools • LavaCreekTuff • Reintroduction

20 Items: Reef • Fish • Deep • Waves • Tides • Coral • Whale • Shark • Trench • Dolphin • Seaweed • Coastal • Habitat • Seafloor • Plankton • Saltwater • Pollution • Ecosystem • Submarine • Exploration

20 Items: Finite • Overuse • Habitat • Renewable • Resources • Ecosystem • Pollution • Recycling • Emissions • Management • Extraction • Consumption • Fossilfuels • Agriculture • Degradation • Nonrenewable • Conservation • Biodiversity • Deforestation • Sustainability

21 Items: Poles • Spheres • Equator • Habitat • Sunlight • Biosphere • Organisms • Pollution • Ecosystem • Atmosphere • WaterCycle • Irrigation • Lithosphere • Hydrosphere • EarthSystems • Biodiversity • Conservation • Conservation • Sustainability • NaturalResources • Interconnectedness

20 Items: edit • table • times • halve • double • species • explore • society • various • counting • dialogue • reptiles • questions • ecosystem • structure • differences • conversation • exclamations • multiplication • characteristic

20 Items: audio • their • there • joyful • audible • they're • receive • careful • helpful • species • habitat • audition • auditory • separate • organism • wonderful • ecosystem • auditorium • thoughtful • biodiversity

20 Items: rival • marine • sibling • advance • hostile • motivate • frontier • submerge • athletic • resentful • rejection • childhood • adulthood • ecosystem • aggressive • compromise • adolescence • informative • contaminate • acidification

20 Items: DNA • Cell • Gene • Enzyme • Nucleus • Protein • Osmosis • Hormone • Ribosome • Mutation • Organism • Evolution • Ecosystem • Chromosome • Adaptation • Homeostasis • Respiration • Mitochondria • Biodiversity • Photosynthesis

20 Items: REEF • CORAL • POLYP • SPONGE • LAGOON • CALCIUM • ANEMONE • SKELETON • STARFISH • BLEACHING • SYMBIOSIS • SEAURCHIN • HARDCORAL • SOFTCORAL • ECOSYSTEM • BRAINCORAL • ZOXANTHELLAE • ELKHORNCORAL • BIODIVERSITY • STAGHORNCORAL

20 Items: TREES • GLOBAL • NATURE • FOREST • CARBON • CLIMATE • HABITAT • PROTECT • RESTORE • WILDLIFE • POLLUTION • RECYCLING • ECOSYSTEM • EXTINCTION • GREENHOUSE • ENDANGERED • ENVIRONMENT • BIODIVERSITY • CONSERVATION • SUSTAINABILITY

20 Items: SOIL • MIDGE • LICHEN • MOSSES • NATIVE • GLACIER • ECOLOGY • BEECHES • MELTING • ISLANDS • CLIMATE • INVASIVE • PENINSULA • ECOSYSTEM • PEARLWORT • PATAGONIA • ANTARCTICA • TARDIGRADE • DANDELIONS • TEMPERATURE

20 Items: Web • Food • Apex • Cycle • Chain • Ocean • Oxygen • Energy • Ecosystem • Symbiosis • Predation • Mutualism • Producers • Consumers • Parasitism • Competition • Decomposers • Respiration • Commensalism • Photosynthesis

20 Items: Energy • Births • Foodweb • Molecule • Organism • Increase • Decrease • Ecologist • Ecosystem • Foodchain • Stability • Population • GlacierSea • Competition • Moonjellies • Reproduction • Indirecteffect • Consumerpopulation • Resourcepopulation • Energystoragemolecule

20 Items: Energy • Births • Foodweb • Molecule • Organism • Increase • Decrease • Ecologist • Ecosystem • Foodchain • Stability • Population • GlacierSea • Competition • Moonjellies • Reproduction • Indirecteffect • Consumerpopulation • Resourcepopulation • Energystoragemolecule

20 Items: urban • birds • flies • seeds • trees • plants • nature • stress • pigeons • insects • habitat • windows • sparrows • greenery • starlings • ecosystem • pollution • wellbeing • mosquitoes • collisions

20 Items: Trees • Reuse • Planet • Nature • Reduce • Garden • Climate • Compost • Organic • Protect • Restore • EarthDay • Electric • Wildlife • Ecosystem • Recycling • Emissions • Environment • Conservation • CarbonFootprint

20 Items: prey • graph • trend • biotic • abiotic • balance • predator • resource • producer • consumer • increase • decrease • ecosystem • community • foodchain • fluctuate • ecologist • population • decomposer • limitingfactor

20 Items: prey • trait • mutation • survival • predator • variation • inherited • offspring • ecosystem • adaptation • population • camouflage • environment • competition • reproduction • biodiversity • advantageous • disadvantageous • naturalselection • selectivepressure

20 Items: Care • Earth • Ocean • Plant • Reuse • Animal • Insect • Nature • Planet • Reduce • Climate • Recycle • Habitat • Protect • Ecosystem • Resources • Pollinator • Rainforest • Environment • Conservation

20 Items: reuse • toxic • reduce • ecology • natural • organic • recycle • habitat • erosion • wetland • resource • landfill • pollutant • renewable • decompose • ecosystem • disposable • solarenergy • environment • globalwarming