A) Presence of marine life like seaweed or barnacles B) Clear water and sandy bottom C) Absence of visible insects D) Water flowing downhill
A) Abundant vegetation growing near the water source B) Lack of any surrounding life C) Foam on the water surface D) Rocky shoreline with crashing waves
A) All water sources are safe to taste B) Both are indistinguishable C) Saltwater will have a distinctly salty taste D) Freshwater will always taste sweet
A) High-altitude lake B) Estuary C) Mountain spring D) Glacier
A) Proximity to the ocean B) Presence of specific plants C) Water color D) Animal activity around the source
A) Mangroves B) Seagrass C) Cattails D) Kelp
A) Frogs and amphibians B) Sea turtles C) Saltwater crocodiles D) Seals and walruses
A) Always potable B) Distilled water C) Saltwater or brackish water D) Pure freshwater
A) Freshwater can still contain harmful bacteria and pollutants. B) Saltwater always looks cleaner. C) Tasting guarantees the water is safe. D) All natural water sources are safe to drink.
A) Boiled water. B) A mixture of saltwater and freshwater. C) Extremely pure freshwater. D) Heavily polluted water.
A) Volcanic hot spring B) Alpine lake C) River delta D) Desert oasis
A) Calcium carbonate B) Potassium iodide C) Sodium chloride D) Magnesium sulfate
A) The exact salt content of the water. B) If the water is safe to drink. C) Whether the water is naturally carbonated. D) What animals rely on that water, but not necessarily its salinity.
A) Using a portable desalination device that requires considerable energy. B) Using water purification tablets. C) Filtering the water through cloth. D) Boiling the water for purification.
A) Frozen B) Safe to drink C) Boiling D) Salty
A) If the water contains parasites. B) The exact mineral content of the water. C) Whether the water is naturally carbonated. D) Where the water originates, but not necessarily its purity.
A) Owls B) Cardinals C) Woodpeckers D) Seagulls
A) Marlin B) Trout C) Shark D) Tuna
A) Always indicates freshwater. B) Always indicates purity. C) Does not guarantee its potability or salinity. D) Always indicates saltwater.
A) Salt deposits B) Freshwater springs C) Diamond deposits D) Increased vegetation
A) Barometer B) Thermometer C) Hygrometer D) Salinometer
A) Oysters B) Salmon C) Polar bears D) Mountain lions
A) Brackish B) Freshwater C) Saltwater D) Polluted
A) Volcanic eruption B) Sublimation C) Precipitation D) Desalination
A) Drought-resistant plants B) Acidic soil C) Fertile soil conditions D) Saline soil conditions
A) Regular flooding by seawater B) Glacial melting C) Heavy rainfall D) Volcanic activity
A) Freezing it. B) Boiling it. C) Adding sugar. D) Adding chlorine
A) Beaver B) Leech C) Mosquito D) Starfish
A) It can lead to dehydration. B) It turns your skin blue. C) It causes instant death. D) It tastes too bad.
A) Fast flowing current B) Algae bloom C) Abundance of wildlife D) Salty taste |