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