GEOGRAPHY QUIZ 9Sai MedidaMarch 7, 2025Geography Welcome to your GEOGRAPHY QUIZ 9 What is considered the "deep sea" in oceanic terms? A) Any depth beyond 500 meters B) Depths greater than 1,000 meters C) The continental shelf D) Depths shallower than 200 meters None Which ocean zone begins at 200 meters and extends to 1,000 meters, where sunlight fades? A) Sunlit Zone B) Twilight Zone C) Midnight Zone D) Hadal Zone None What is the deepest part of the ocean called? A) Mariana Trench B) Challenger Deep C) Mid-Atlantic Ridge D) Abyssal Plain None Which layer of the ocean receives no sunlight at all? A) Epipelagic Zone B) Bathypelagic Zone C) Abyssopelagic Zone D) Mesopelagic Zone None At what depth does the Hadal Zone begin? A) 2,000 meters B) 3,500 meters C) 6,000 meters D) 10,000 meters None Which of the following adaptations is most useful for deep-sea animals? A) Large eyes for detecting dim light B) Bioluminescence for communication and predation C) Thick fur for warmth D) Ability to breathe atmospheric air None What is the primary source of energy for deep-sea ecosystems? A) Photosynthesis B) Hydrothermal vents C) Sunlight filtering through water D) Volcanic eruptions None What is the deepest-known living fish? A) Goblin Shark B) Coelacanth C) Mariana Snailfish D) Fangtooth None What is "marine snow"? A) Frozen seawater at great depths B) A type of underwater avalanche C) Organic debris falling from upper ocean layers D) A bioluminescent plankton colony None Which deep-sea predator has transparent teeth and a large mouth? A) Anglerfish B) Fangtooth C) Gulper Eel D) Giant Squid None What is a hydrothermal vent? A) A cold-water geyser in the ocean B) A deep-sea mountain covered in lava C) An opening on the seafloor releasing mineral-rich hot water D) A trench filled with methane gas None Where are the majority of deep-sea trenches found? A) Mid-Atlantic Ridge B) Pacific Ocean C) Indian Ocean D) Arctic Ocean None What is an abyssal plain? A) A deep-sea trench B) A wide, flat area of the ocean floor C) A volcanic seamount D) The deepest part of the ocean None What causes deep-sea currents? A) Wind patterns B) Tidal waves C) Temperature and salinity differences D) River runoff None Which of the following is an underwater mountain formed by volcanic activity? A) Rift Valley B) Seamount C) Ocean Ridge D) Trench None Who was the first person to reach the deepest part of the ocean? A) Jacques Cousteau B) James Cameron C) Don Walsh and Jacques Piccard D) Sylvia Earle None Which submersible was used to reach the Challenger Deep in 1960? A) Alvin B) Nautilus C) Trieste D) Deepsea Challenger None Which robotic vehicle is commonly used to explore the deep sea? A) Space Rover B) ROV (Remotely Operated Vehicle) C) Hydrofoil D) Submarine None What is the biggest challenge of deep-sea exploration? A) Cold temperatures B) High pressure C) Lack of sunlight D) Water currents None What percentage of the ocean floor remains unexplored? A) 10% B) 25% C) 50% D) More than 80% None Which deep-sea creature is often mistaken for a sea monster due to its long tentacles? A) Giant Squid B) Vampire Squid C) Gulper Eel D) Frilled Shark None What is the Bermuda Triangle known for? A) A deep-sea trench B) Mysterious disappearances of ships and planes C) A major coral reef system D) The largest underwater volcano None Which deep-sea phenomenon occurs when methane gas is released from the ocean floor? A) Tsunamis B) Ocean Acidification C) Methane Hydrate Eruption D) Hydrothermal Venting None What causes the eerie glowing effect in some parts of the deep ocean? A) Volcanic activity B) Bioluminescent organisms C) Radioactive minerals D) Light from the sun None Which oceanic event can create massive underwater landslides? A) Earthquakes B) Tides C) Hurricanes D) Iceberg melting None What is the biggest threat to deep-sea ecosystems? A) Underwater tourism B) Deep-sea mining C) Whale migration D) Natural ocean currents None What is the name of the pollution that reaches the deepest parts of the ocean? A) Microplastics B) Acid rain C) Nuclear waste D) Sulfur deposits None Why is overfishing a problem in deep-sea environments? A) Deep-sea fish reproduce very slowly B) Deep-sea fish are harmful to humans C) The deep ocean is too vast to be affected D) Fishing cannot occur at such depths None How does climate change affect the deep ocean? A) It increases water temperature and acidification B) It makes fish larger C) It reduces water pressure D) It has no effect on the deep sea None Which treaty aims to protect deep-sea biodiversity? A) The Antarctic Treaty B) The UN High Seas Treaty C) The Kyoto Protocol D) The Paris Agreement None 1 out of 6 Time's upTime is Up! Post Views: 164
