Ocean Trivia Questions give knowledge on the ocean around the world. When salty water from the ocean mixes with fresh water, a particular place known as an estuary is fashioned Ocean Trivia Questions.
There are four main oceans, the Pacific, Atlantic, Indian, and Arctic. The Pacific Ocean is the biggest and covers a 3rd a part of the Earth, you will find here in this Ocean Trivia Questions.
The ocean is a steady body of salt water that covers greater than 70 p.c of the Earth’s floor. Ocean currents govern the world’s climate and churn a kaleidoscope of life of Ocean Trivia Questions.
Geographers divide the ocean into 5 main basins: the Pacific, Atlantic, Indian, Arctic, and Southern Ocean in this Trivia Questions are available.
Let’s find the 200 printable Ocean Trivia Questions you can use anywhere.
1. Where is the Bermuda Triangle located?
2. During winter Which ocean is almost completely covered in the sea ice?
The Arctic Ocean
3. The Southern Ocean includes the area of water that encircles what continent?
4. How many animals are in the ocean?
Scientists estimate that about one million species of animals live in the ocean. But most of them—95 percent—are invertebrates, animals that don’t have a backbone, such as a jellyfish and shrimp.
5. What is the deepest point of the Mariana Trench?
11000 meters (36000 feet)
6. What is the Pacific Ocean is surrounded by?
The Pacific Ring of Fire, a large number of active volcanoes.
7. The second-largest ocean on Earth is the Atlantic Ocean, how much does it cover of the Earth’s surface?
8. What is the earth’s longest chain of underwater mountains?
The Mid-Ocean Ridge
9. The world’s oceans contain enough water to fill a cube with edges how many kilometers in length?
Over 1000 kilometers (621 miles)
10. What is caused by the Earth rotating while the Moon and Sun’s gravitational pull acts on ocean water?
11. What are the 7 oceans called?
Since the 19th century, the term has been taken to include seven oceanic bodies of water:
the Arctic Ocean.
the North Atlantic Ocean.
the South Atlantic Ocean.
the Indian Ocean.
the North Pacific Ocean.
the South Pacific Ocean.
the Southern (or Antarctic) Ocean.
12. What percent of oceans cover the Earth’s surface?
more than 70%
13. Who became the first female to fly solo across the Atlantic Ocean in 1932?
14. What is the third-largest ocean on Earth?
The Indian Ocean
15. What percent of the earth’s surface is covered by the Indian Ocean?
16. How deep is the ocean facts?
Officially anything deeper than just 200 meters is considered the “deep sea”, but the average depth of the entire ocean is about 3.5km and the deepest point – the Challenger Deep in the Mariana Trench, in the western Pacific – is a little short of 11km down.
17. What percent of life on Earth is aquatic?
94% of the Earth’s living species that exist within the oceans
18. What percentage of the Earth’s surface the Pacific Ocean, the largest ocean on Earth covers?
19. The Pacific Ocean’s name has an original meaning of
20. What are the 10 largest oceans?
Top 10 World’s Largest Oceans and Seas
The Pacific Ocean. 166,242,000.
Atlantic Ocean. 86,557,800.
The Indian Ocean. 73,427,800.
Arctic Ocean. 13,223,800.
East Vietnam Sea. 2,974,600.
Caribbean Sea. 2,515,900.
Mediterranean Sea. 2,510,000.
The Bering Sea. 2,261,100.
The sea of Okhotsk. 1,527,570
The Gulf of Mexico. 1,507,600
21. How old is the ocean?
About 3.8 billion years ago
22. What portion of the US lies beneath the ocean?
23. What is the distance of underwater Mid-Ocean Ridge, the world’s longest mountain chain?
24. Over vast periods of time, our primitive oceans formed. The water remained a gas until the Earth cooled below ____ degrees Fahrenheit.
25. What is the biggest creature in the ocean?
Blue Whale Blue whales
26. How many animals are in the ocean?
100 million is the current estimated figure, and this includes fish, mammals, and sea birds.
27. There are more historic artifacts under the sea than in all of the world’s museums. True/ False?
28. When __________combine, it becomes denser than the rest of the water around it, enabling it to form a lake or river that flows beneath the sea.
Salt water and hydrogen sulfide
29. What are the five oceans of the world?
The Pacific Ocean | 168,723,000 square kilometers.
The Atlantic Ocean | 85,133,000 square kilometers.
The Indian Ocean | 70,560,000 square kilometers.
The Southern Ocean | 21,960,000 square kilometers.
The Arctic Ocean | 15,558,000 square kilometers.
30. Does the ocean have an end?
From an oceanographic point of view, they have no end, they are all connected.
31. How far down is the Titanic?
32. What’s the smallest ocean on Earth?
The Arctic Ocean. With an area of about 6.1 million square miles, the Arctic Ocean is about 1.5 times as big as the United States.
33. What percent of our planet’s oxygen is produced by the ocean?
34. The Mariana Trench is located to the east of what island?
The Mariana Islands in the western Pacific Ocean,
35. The Atlantic Ocean’s name refers to what Greek mythology?
36. Where did ocean water come from?
According to this theory and research, the ocean formed from the escape of water vapor and other gases from the molten rocks of the Earth to the atmosphere that is surrounding the cooling planet from time immemorial. After the Earth’s surface had cooled to a temperature below the boiling point of water, rain began to fall—and continued to fall for centuries, covering lowlands
37. Who is famous ocean dating?
Famous Ocean began dating Chicago-based ‘Instagram’ sensation
38. How many islands are there in the Pacific Ocean, the world’s largest ocean?
39. How old is the water we drink?
4.6 billion years
40. According to the World Register of Marine Species how many accepted species (with new marine life being discovered every day) are there?
41. What is the coldest sea on earth?
42. What do we call 85% of the area and 90% of the volume constitutes the dark, cold environment?
The deep sea.
43. What is it called when the sun is shining and its raining?
A sunshower or sun shower is a meteorological phenomenon in which rain falls while the sun is shining.
44. What is the rarest sea creature?
Allonautilus scrobiculatus, a rare species of nautilus, a marine mollusc
45. Who invented water?
46. What ocean has the most sharks?
47. Which country puts the most plastic in the ocean?
48. Does it rain in the sun?
Rain takes different forms on the planets and moons of our solar system. But it also “rains” on the sun, as electrified gas drips from giant magnetic loops in the sun’s outer atmosphere.
49. What’s the ugliest fish in the world?
50. How much life is in the ocean?
An estimated 50-80% of all life on earth is found under the ocean surface and the oceans contain 99% of the living space on the planet.
51. Which ocean is saltiest?
52. Why is ocean water salty?
Salt in the ocean comes from rocks on land. The rain that falls on the land contains some dissolved carbon dioxide from the surrounding air. This causes the rainwater to be slightly acidic due to carbonic acid, which forms from carbon dioxide and water.
53. Will the earth ever run out of water?
Water, as a vapor in our atmosphere, could potentially escape into space from Earth. While our planet as a whole may never run out of the water, it’s important to remember that clean freshwater is not always available where and when humans need it. In fact, half of the world’s freshwater can be found in only six countries.
54. Will Titanic be raised?
It is not possible to raise the wreck of the Titanic. It’s in very deep water (12,500 feet), which by itself presents a nearly insurmountable challenge. Also, the ship lies in two pieces, both of them very fragile and badly deteriorated after over a century under water.
55. What is the most expensive fish in the world to eat?
Japan tuna is the world’s most expensive edible fish.
56. What is the role of the Sun in the water cycle?
The sun provides what almost everything on Earth needs to go—energy, or heat. Heat causes liquid and frozen water to evaporate into water vapor gas, which rises high in the sky to form clouds… clouds that move over the globe and drop rain and snow. This process is a large part of the water cycle.
57. How many ocean animals die each day?
This translates to about a million bags every minute across the globe, or 150 bags a year for every person on earth. 100,000 marine creatures a year die from plastic entanglement and these are the ones found.
58. Will the ocean be empty by 2048?
If humans keep fishing at the current pace, there will be no more fish left in the oceans by 2048.
59. How big is a Megalodon?
Megalodon could grow up to 60 feet (18 meters) long and had a bite more powerful than that of a Tyrannosaurus rex. The sea monsters terrorized the oceans from about 16 million to 2 million years ago.
60. Which shark is the most dangerous?
Great white shark
61. Sharks can smell blood from up to around what distance?
A quarter of a mile away.
62. Why is ocean water salty?
Salt in the sea, or ocean salinity, is mainly caused by rain washing mineral ions from the land into the water. Carbon dioxide in the air dissolves into rainwater, making it slightly acidic. When rain falls, it weathers rocks, releasing mineral salts that separate into ions.
63. What animals live in the ocean floor?
These include animals such as sea cucumbers, sea stars, crustaceans and some worms. Other animals need to have something solid to attach themselves to the seafloor, such as sponges, hard and soft corals, and some anemones.
64. What is the process called when the molecules of liquid water change into water vapor and move into the air by the heat of the Sun?
65. How cold is the bottom of the ocean?
Around 0-3 °C
66. What is the most intelligent shark?
Great white sharks
67. What happens to water when it evaporates?
Evaporation happens when a liquid substance becomes a gas. When water is heated, it evaporates.
68. What’s the rarest fish in the world?
Devils Hole pupfish
69. What is the difference between Ocean and Sea?
Typically, seas are partially enclosed by land.
70. Which sea was first named by the ancient Greeks who called it “Inhospitable Sea.”?
71. Why is it called the Black Sea?
The sea got this reputation because it was difficult to navigate, and hostile tribes inhabited its shores. The Black Sea has a depth of over 150 meters, and its waters are filled with hydrogen sulfide for almost two kilometers.
72. How deep can a whale dive?
The deepest recorded dive was 2,992 meters, breaking the record for diving mammals.
73. Who named the oceans of the world?
The ocean was first mapped by Abraham Ortelius; he called it Maris Pacifici following Ferdinand Magellan’s description of it as “a pacific sea” during his circumnavigation from 1519 to 1522.
74. How many sharks are in the ocean?
There are more than 500 species of sharks in the world’s oceans—and there may be many more that scientists still have not identified.
75. What is the ugliest sea creature?
76. Which jellyfish can kill you?
77. Why is sea life important?
The oceans are a significant source of oxygen for our planet and are instrumental in the capture and storage of carbon dioxide. Marine species provide important ecosystem services such as the provision of food, medicines, and livelihoods. They also support tourism and recreational activities around the world.
78. What did dinosaurs drink?
Floodplain dinosaurs slurped from local rivers, while forest dinosaurs drank water rich in minerals that had circulated through the rocks, picking up volcanic salts on the way.
79. Whats the most dangerous sea animal?
Australian box jellyfish
80. What is the rarest of all marine mammals?
The little vaquita porpoise
81. What percentage of trash in the ocean comes from land?
Approximately 80 percent of ocean plastics come from land-based sources and the remaining 20 percent from marine sources.
82. A large number of islands referred to collectively is what?
83. The Amazon River is connected to which major ocean?
84. What is Smack?
A mass of jellyfish floating together called
85. When is the Endangered Species Day?
86. An estuary connects the ocean to what?
87. How long can it take for a plastic bag to decompose?
10 to 1,000 years
88. What is the minimum threshold for the depth of a deepwater operation?
89. “Ghost fishing” refers to what?
Lost Nets Continuing To Catch Fish
90. The OSPAR Convention is short for what?
Oslo And Paris
91. What percentage of trash in the ocean is made up of plastic?
92. The Bering Strait lies between which two continents?
North America And Asia
93. One dump truck of plastic waste enters our ocean every
94. What role does a skimmer play in cleaning up ocean pollution?
Collecting Floating Pollution
95. How much trash has been found floating on the ocean surface?
There are 5.25 trillion pieces of plastic debris in the ocean. Of that mass, 269,000 tons float on the surface, while some four billion plastic microfibers per square kilometer litter the deep sea.
96. Which oceanic zone allows photosynthesis?
97. Every day, how much trash does the average American throw away in the U.S.?
According to the EPA, the average American person will produce about 5.91 pounds of trash, with about 1.51 pounds being recycled; 4.40 pounds is the rough average daily waste per person.
98. A seamount would be found in what part of the ocean?
Near The Coast
99. Brine pools in the ocean have an unusually high level of what?
100. Too much sunlight can damage the algae that live inside coral in shallow water. To protect the algae, the corals fluoresce – this creates proteins that act as a sort of sunscreen for the algae. True/ False?
101. The Strait of Gibraltar connects the Atlantic Ocean to what sea?
102. What are the top 5 items typically found on beach clean-ups?
Food wrappers (1.7 million pieces), drink bottles (1.6 million), bottle caps (1.1 million), and grocery bags (757,523) round out the top five.
103. Plankton largely resides in what part of the ocean?
104. What is the primary food source for coral reefs?
105. Which of the following can help reduce ocean trash
Reduce Your Use of Single-Use Plastics.
Participate In (or Organize) a Beach or River Cleanup.
Avoid Products Containing Microbeads.
Spread the Word.
Support Organizations Addressing Plastic Pollution.
106. The entirety of Mount Everest—at 29,029 feet—could easily be accommodated in what part of Mariana Trench?
107. The total value of the unrecovered underwater treasures might be approximately
108. Which groups of fish are the seahorses closely related to?
109. When tropical fish are caught, fishermen use what chemicals to make them float out of the reef for easy scooping. causing to bleach coral reefs and kill scores of other fish?
110. Communications companies maintain international connections by feeding cables down to (hopefully) flat surfaces on the ocean floor. True/ False?
111. Fish in the northern Pacific, researchers at the University of California, San Diego once estimated they swallow between ___ tons every year.
12,000 and 24,000 tons
112. What is a fish a little smaller than your average human finger that has a mouth full of fangs and can glow in the dark?
113. What is the name of giant kelp, a type of seaweed that experiences an astonishing growth spurt to reach its usual height of 100 feet, and the species can grow up to two feet in a single day?
114. What is NOAA
The National Oceanic and Atmospheric Administration (NOAA)
115. What of volcanic eruptions go unnoticed by land-dwellers as these are erupting underwater/
Up to 80 percent
116. What is the largest recorded Tsunami?
A 1958 earthquake and landslide in Alaska generated a tsunami 100 feet high and destroyed all vegetation up to 1720 feet, the largest in recorded history.
117. Where is the biggest waterfall on earth in the Atlantic?
118. Recent studies have shown plastic pollution in what percent of marine turtles?
119. Inside of the Mariana Trench, these are a valley known as Challenger Deep that extends roughly ________miles below the surface.
Seven miles (36,070 feet)
120. How much of the oxygen that we breathe is produced by oceans?
121. What is the process called that salt is removed, leaving fresh water from the ocean water?
122. What is the name of a phytoplankton which estimated to be solely responsible for one in every five breaths a human takes?
123. What in the fish prevents ice crystals from growing, preventing their blood from being overcome by the chill and allowing it to continue flowing?
124. Why the water you drink out of a glass doesn’t appear ocean-blue?
The sea water absorbs the longer red and orange wavelengths of light while reflecting blue light back. This is why the water you drink out of a glass doesn’t appear ocean-blue
125. How many adult humans could fit inside the space of the blue whale’s heart?
126. What is the most remote place on earth is in the south Pacific named
127. How much of gold estimated to exist in the ocean water?
20 million tons
128. What is called the water walls found three miles below the surface of the ocean?
The internal waves
129. Researchers discovered that sound from earthquakes, passing baleen whales, and another ambient noise to almost the bottom of the Mariana Trench was audible by
130. What is the emitting a bright blue glow the ocean waters of Southern California?
131. What is the second largest ocean?
132. What percent of all life are found in the ocean?
133. Water from under the sea floor seeps up and dissolves salt layers, forming depressions. Because the water in the depression is denser than the water all around it, it settles into the depression and forms what?
Underwater Lakes and Rivers
134. The blue color of the ocean is the result of what being absorbed by the surface and its blue wavelengths penetrating deeper, giving way to a blue tint?
The sun’s red and orange wavelengths
135. At the bottom of the Mariana Trench, what is the pressure is?
About eight tons per square inch, the equivalent of about 100 fully grown elephants.
136. How long is the longest cable?
SEA-ME-WE 3, the cable is a whopping 39,000km (24,000 miles) long.
137. What is the name of wires crisscross the ocean floors, put in place by boats built solely for telecommunication and internet purposes?
Submarine communications cables
138. What is the length of the submarine cables?
1.2 million kilometers, approximately 420 submarine cables in service
139. How deep are submarine cables laid?
The deepest part of the submarine cable between Japan and the U.S. is about 8,000 meters below sea level (in the Japan Trench)
140. Who owns undersea cables?
Google will be the sole owner of 10,433 miles of submarine cables when the Curie cable is completed in 2019. Google holds partial ownership of 8.5% of submarine cables worldwide. Google holds sole ownership of 1.4% of submarine cables worldwide.
141. The record for the deepest free dive is held by Whom, dove to an astounding depth of 86 m without any breathing equipment?
142. Many fish can change sex during the course of their lives. Others, especially rare deep-sea fish, have both male and female sex organs. True/ False?
143. More than what percent of the trade between countries is carried by ships and about half the communications between nations use underwater cables?
144. What is the normal life-span of icebergs?
145. How many icebergs are produced by the Arctic annually?
146. Each year, three times as much rubbish is dumped into the world’s oceans as the weight of fish caught. True/ False?
147. What portion of the world’s oil comes from offshore fields in our oceans?
148. What is the ting, measuring 2,300 km in length covering an area more extensive than Britain, is the largest living structure on Earth, and can be seen from space?
The Great Barrier Reef
149. What is responsible for 33% of the toxic contaminants that end up in oceans and coastal waters?
150. What percent of the toxic contaminants come from runoff via rivers and streams in the ocean?
151. The density of sea water becomes denser as it becomes colder, right down to its freezing point of -1.9°C, unlike fresh water which is most dense at 4°C, well above its freezing point of 0°C. True/ False?
152. 10,000 years ago what was the ocean level than it is now?
It was about 110 m lower
153. What is the percentage of the whopping all habitable space on the planet ocean comprises?
154. A ______ of seawater may contain millions of bacterial cells, hundreds of thousands of phytoplankton and tens of thousands of zooplankton.
155. 898 species from more than 100 families and a dozen ____ in an area about half the size of a tennis court.
156. What is the fastest fish in the ocean reaching speeds up to 121 kph in quick bursts
Swordfish and marlin
157. The Denmark Strait, a massive underwater cascade of water that plummets
11,500 feet (more than three times the height of Angel Falls in Venezuela)
158. Because of the architecture and chemistry, what are the ocean elements similar to human bone and have been used to replace bone grafts in helping human bone to heal quickly and cleanly?
159. The sea level has risen with an average of what rate and scientists expect this rate to increase?
10-25 cm increase over the past 100 years
160. Antarctica has as much ice as the Atlantic Ocean has water. True/ False?
161. What is a common fact between the Arabian Gulf, the North Sea, and the Gulf of Mexico?
Areas most popular for oil drilling
162. What mountain is half under the water and a half above it, and, from top to bottom, it stretches a whopping 33,500 feet?
Mauna Kea, that’s almost a whole mile taller than Mount Everest!
163. What is the greatest percentage of the world’s protein consumed by humans?
164. What is the longest bony fish in the world?
Oarfish (Regalecus glesne)
165. Refined oil is also responsible for polluting the ocean. True/ False?
166. What is the average temperature of all ocean water?
167. What is This unique spot” Point Nemo” 20,000 Leagues Under the Sea?
The farthest on the entire planet from land goes by “the oceanic pole of inaccessibility,”. Those points of land are Motu Nui, far off the western coast of Chile; Ducie Island, one of the Pitcairn Islands between South America and Australia; and Maher Island, off the coast of Antarctica. The International Space Station orbits just 250 miles above Earth’s surface.
168. What is the significance of 3.1 billion to 3.4 billion years ago?
Life began in the ocean
169. If all the world’s ice melted, how much the oceans would rise?
170. What type of ecosystem do we live in?
171. How many species are we losing per hour?
172. It is more than 50,000 km in length, which wings around the globe from the Arctic Ocean to the Atlantic, skirting Africa, Asia, and Australia, and crossing the Pacific to the west coast of North America. What is this?
Mid-Ocean Ridge, Earth’s longest mountain range, more than 50,000 km in length
173. What are the 4 types of ecosystems?
The four ecosystem types are classifications known as artificial, terrestrial, lentic, and lotic.
174. If you could take Mt. Everest and place it at the bottom of the trench there would still be over a mile of the ocean above it. True/ False?
175. How many species of whale are there in the world?
176. “Currently, scientists have named and successfully classified around 1.5 million species. It is estimated that there are as little as 2 million to as many as 50 million more species that have not yet been found and/or have been incorrectly classified.” True/ False?
177. What moves a 100 times as much water as all the rivers on earth and flows at a rate 300 times faster than the Amazon, which is the world’s largest river?
The Gulf Stream
178. It can travel between 40-121 km/day at 1.6-4.8 kph, and extends some 1,006 m deep. What is this?
The Kuroshio Current, the largest current
179. What portion of the Earth’s surface is occupied by the Pacific Ocean?
180. What is the largest ecosystem in the world?
181. What country has the most ecosystems?
The South American nation is the most biodiverse country on earth by area, and second overall behind the much larger Brazil.
182. What we commonly know the Japanese word meaning “harbor wave”?
183. Less than 1% is fresh water, and 2-3% is contained in glaciers and ice caps, which is
184. How much depth of the ocean holds as much heat as the entire atmosphere?
The top ten feet
185. What percentage of the world’s animals live in the ocean?
Scientists now estimate that 80 percent of Earth’s species live on land, 15 percent in the ocean, and the remaining 5 percent in freshwater.
186. What percentage of all volcanic activity occurs in the oceans?
187. What are the two main types of whales?
Baleen whales and the toothed whales
188. What are biomes?
Ecosystems are parts of biomes, which are climatic systems of life and organisms. In the biome’s ecosystems, there are living and nonliving environmental factors known as biotic and abiotic.
189. At some times of the year, the difference between high and low tide is 16.3 m, taller than a three-story building. What is this place?
The highest tides in the world are at the Bay of Fundy
190. It is four times longer than the Andes, Rockies, and the Himalayas combined. What is this?
The Mid-Ocean Ridge, an underwater mountain belt
191. What underwater area is as productive as the same area in rain forests, most crops, and intensive agriculture. ?
Ocean upwelling zone or deep estuary
192. What is the largest current?
The Kuroshio Current, off the shores of Japan
193. What is a well-known current of warm water in the Atlantic Ocean?
The Gulf Stream
194. What is the world’s largest water body?
The Pacific Ocean
195. What is the greatest depth, 8,381 m, in the Atlantic Ocean?
Puerto Rico Trench.
196. What is the depth of the lowest known point on Earth, called the Challenger Deep?
197. What is the speed of sound in water – nearly five times faster than the speed of sound in air?
198. What is the pressure at the deepest point in the ocean?
More than 11,318 tons/sq m, or the equivalent of one person trying to support 50 jumbo jets.
199. An estimated what percent of all life on earth is found under the ocean surface?
200. How much area the Pacific cover?
179.7 million sq km.
201. Where was the largest recorded tsunami measured 60 m above sea level caused by an 8.9 magnitude earthquake in 1899 traveling at hundreds of km/hr?
in the Gulf of Alaska
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