It is a deep ocean with depth ranging between 4,000 and 5,000 m across most parts. The Atlantic ocean is home to the largest island in the world, Greenland, and is also home to the Bermuda Triangle, infamous for its ability to drown ships and planes that cross over it. The ocean is one of Earth’s most mysterious places and is crucial to our way of life. Plant life in the Arctic Ocean is scarce except for abundant volumes of phytoplanktons. Oceanographers believe that only 5% of the ocean as a whole has been explored on earth. The saltiness comes from evaporation, precipitation, and water flows from numerous rivers belonging to the four continents it is surrounded by. The Pacific ocean is probably best known for having the ring of fire as its big feature. The Pacific is the largest and oldest of the oceans. Number of Oceans in the World. ISSN: 2639-1538 (online). This new ocean is recognized by the U.S. Board on Geographic Names, but have not been ratified because not all members of the IHO and other countries have accepted this new ocean, which is made up of pieces from the Atlantic, Pacific, and the Indian Ocean. The origin of Earth's oceans remains unknown; oceans are thought to have formed in the Hadean period and may have been the impetus for the emergence of life. Fertilizer and pesticide wash-off from agricultural fields, sewage, and industrial wastes all drain into the ocean via these rivers. All Rights Reserved. We cover everything from solar power cell technology to climate change to cancer research. All maps, graphics, flags, photos and original descriptions © 2020 worldatlas.com. Several rare and threatened species of marine life like sea turtles, whales, dolphins, manatees, seals, sea lions abound in the Atlantic. While there is only one global ocean, the vast body of water that covers 71 percent of the Earth is geographically divided into distinct named regions. Depending on the designation, there are 3, 4, or 5 oceans in the world. The maximum recorded depth is found to be 18,456 feet. © 2020 Science Trends LLC. Long hours of darkness engulf the ocean during winters and summers are characterized by continuous daylight. The largest and the deepest ocean on our planet is the Pacific Ocean. The Atlantic Ocean is bounded by the landmasses of North and South America to the west and Asia and Africa to the east. 
, Researchers estimate that the Southern Ocean seabed is a storehouse of massive oil and gas fields, valuable minerals like gold, placer deposits, manganese nodules, and more. 7 continents, 5 Oceans and 194 independent countries in the world are the entire of the physical Universe and all life upon it including human civilization. It is divided into the standard oceans: the Atlantic Ocean, Arctic Ocean, Indian Ocean, Pacific Ocean, and the proposed Southern Ocean and ocean round the Antarctic. It is the standard classification that is held by National Geographic. Threatened species of whales and walruses inhabit the ocean. Want to know more? The 'World Ocean' is centered on the southern oceans. These include terns, gulls, albatrosses, skuas, petrels, etc. As per estimates, 97% of the water on our planet is found in the ocean. You see, there is only one global ocean on the planet. However, in the relatively shallow waters off the coast of Australia and New Zealand, petroleum and natural gas deposits have been discovered. Ours is not the only ocean in the solar system and the more we understand our own, the better we will be able to approach studying those foreign places. The boundaries between these regions have evolved over time for a variety of historical, cultural, geographical, and scientific reasons. Geographers, for many years, divided the world ocean into four parts: the Atlantic, Pacific, Indian, and Arctic Oceans. The ocean remains one of the most unexplored places on Earth. 5. Excess of oxygen depleting pollutants triggers hypoxia and creates dead zones in the ocean. It is also important to understand how humans have affected the health and welfare of the ocean. Sign up for our science newsletter! The melting would also result in the death of numerous species, including polar bears because they would lose their habitats. The other names in seven seas include Red Sea, Mediterranean sea, Arabian Sea, Gulf of Mexico, Caribbean Sea. However, today we recognize 5 oceans in the world, with the Southern Ocean added to the list. The marine habitat of the Arctic Ocean is a fragile ecosystem that is highly susceptible to slight disruptions in weather. The ocean bed also hosts petroleum and natural gas fields, polymetallic nodules, and placer deposits. Wildlife Guides Stumble Upon Rare White Lion in South Africa, NASA Confirms: Living Aboard The International Space Station Changed Scott Kelly’s DNA, Mach Speed: From Mach 1 To Mach 3 Speed and Beyond, The Effect Of Outdoor Noise On Italian Schools, Regenerative Abilities In The Mammalian Nervous System, Here’s How To Survive A Zombie Apocalypse, According To Science, 140 million square miles (71% of the Earth’s surface),  36,198 feet (11,033 m); the deepest point is the Mariana Trench in the western Pacific,  Mauna Kea in Hawaii rises 33,474 feet (10,203 m) from its base on the ocean floor, Massive mountain ranges that are 40,000 miles (64,000 km) long. There are 5 oceans: Historically, there are four oceans: Atlantic, Pacific, Arctic, and Indian. Humans depend on these teeming waters for comfort and survival, but … This results in the release of natural gases, organisms, and nutrients that were all trapped in the ice. A number of rare and threatened species is getting depleted in large numbers as bycatch. The Indian Ocean is the third largest ocean on the planet. That's great to hear! Frequent oil spills, municipal sewage pollution, industrial pollution, bycatch during irresponsible and outdated fishing activities all threaten the marine life in the Atlantic Ocean. This region is also the home of the ring of fire, which is characterized by immense earthquakes and volcanic activity. Now we have 7 continents and 5 oceans which are home to all of us and millions of other living organisms. There are five oceans in the world. Choppy seas, storms, and iceberg interventions are common. Overall, the Indian ocean is the warmest of the oceans and this results in it having a limited marine life. Science Trends is a popular source of science news and education around the world. The Pacific Ocean is the world’s largest. We have included the details about how many countries are in the world below in this article.. Technically, there is only a single ocean: the world ocean. Historically, there are four oceans: Atlantic, Pacific, Arctic, and Indian. This represents about 71% of the Earth’s surface. These are: Atlantic Ocean, Antarctic Ocean, Arctic Ocean, Indian Ocean, and Pacific Ocean. Despite this, it is home to breeding humpback whales and the second largest population of tuna. How Many Types Of Bears Are There Living In The World Today? However, there is only one Global Ocean. This transformation would load the Arctic with large volumes of meltwater and affect the ocean currents prevailing in the region. Lions are rather majestic creatures that roam the wilds of Africa, Asia, and zoos. There is only one global ocean. The Southern Ocean is also one of the most dangerous parts of the ocean for ships. The area occupied by the ocean is about 15,558,000 square km, and its coastline extends for 45,389 km. According to NOAA, there are five ocean basins in the world - Arctic, Atlantic, Indian, Pacific, and Southern. We break that single ocean into parts because the pa… This ocean extends from the shores of Antarctica to the line of latitude at 60 degrees South. These plastics affect the ecosystems of numerous species and even make their way back to humans, inside of fishes. This process is still going on. The unique ecology and features of this region are sufficient enough, by IHO standards, to give it its own classification. The world ocean is the habitat of 230,000 known species, but because much of it is unexplored, the number of species that exist is much larger, possibly over two million. Number Of Oceans In The World (Historically Standard): 4, Number Of Oceans In The World (New IHO Standard): 5, “We are tied to the ocean. The Pacific is the largest of these oceans, covering 63,784,077 sq miles (165,200,000 km²). The Atlantic is also the most active ocean for travel because of its connection to four different continents. Warm and cold ocean currents in the Atlantic also influence the climate of the coastal areas on the shores of the Atlantic. How many Oceans in the World? Unfortunately, the Pacific ocean is home to the largest gathering of plastics that humans have released into the environments. Since the Atlantic Ocean is vast, its climate varies widely from the north to the south. Unfortunately, the Pacific ocean is home to the largest gathering of plastics that humans have released into the environments. Let us learn about each of these seven continents and five oceans that make up our planet earth. The Bering Strait connects the Arctic Ocean to the Pacific Ocean. We're sorry to hear that! Approximately, 80% of the ocean hasn't been mapped or explored. As per research, the Arctic might become ice-free by 2040. The Gulf Stream and the North Atlantic Drift are responsible for keeping large parts of the coast of north-western Europe and the British Isles warm when the coast of Newfoundland in Canada on the same latitude experiences extreme temperatures in winter. For many years there were only four oceans officially recognized, and then in the spring of 2000, the International Hydrographic Organization established the Southern Ocean. Now, here are the characteristics and some facts about the 5 major oceans on the Earth. It fills the area between the western coastline of the Americas, the eastern coastlines of Asia and Australia, and is capped to the North and South by the Arctic and Antarctic regions. What is the largest ocean in the world? These oceans come together to form part of the 71% of the surface of the earth that is covered by water. Thus, the Indian Ocean offers lucrative fishing grounds and fish, especially tuna and shrimp caught here, are sold to markets across the world. There are 5 major oceans in the world. Ocean currents govern the world's weather and churn a kaleidoscope of life. The World Ocean is the habitat of 230,000 known species, but because much of it is unexplored, the number of species that exist in the ocean is much larger, possibly over two million. Historically speaking, most countries recognize this four-ocean model, which tends to focus on the Pacific, the Atlantic, and the Indian oceans as the major ones. The Arctic is also home to many fish and animals, including polar bears. The Pacific Ocean is the largest and deepest of them all, it extends from the Arctic Ocean in the north to the Southern Ocean in the south and is bounded by Asia and Australia in the west and the Americas in the east. It wasn't until 2000 that a fifth ocean was officially named: the Southern Ocean, which includes the waters around Antarctica. A large variety of fish like tuna, salmon, swordfish, herring, snapper, etc., abound in parts of the Pacific. Then there is … The Atlantic, Indian, and Pacific Oceans can be seen as … The Arctic Ocean is located in a polar climatic zone characterized by frigid year-round temperatures. In addition to these oceans, they also described many other smaller bodies of salt water including seas, bays, and estuaries. This is because the ocean is comprised of one global and interconnected body of saltwater. The Indian Ocean occupies 70,560,000 square km area on the Earth’s surface. The ocean houses a plethora of marine organisms ranging from marine microbes to the world's largest animal, the blue whale. How Many Oceans Are There in the World? The ocean covers about 71% of the surface of the Earth. An ocean is a large body of saline water teeming with plant and animal life. How many oceans are there? Encircling Antarctica, south of the 60° S latitude, is the Southern Ocean or the Antarctic Ocean. There is the Atlantic Ocean which separates the American Continents from Europe and Africa. Barrow and Prudhoe Bay in Alaska; Churchill, Nanisivik, and Inuvik in Canada; Nuuk in Greenland; Kirkenes, Vardø, and Longyearbyen in Norway; and several ports like Murmansk, Tiksi, and Pevek in Russia, all lie on the Arctic coast. One of the most different features from all the other oceans is that the arctic ocean is covered in mountains of ice throughout most of the year. These alterations would, in turn, cause a drastic change in the global climate. There is one global ocean called the World Ocean, because the entire body of water on our planet is connected. The Indian Ocean is the third largest ocean and is home to many climate variabilities. There are five oceans in the world. The deepest point in the Pacific Ocean is the Challenger Deep in the Mariana Trench (10,929 m) located in the western North Pacific.
. For ancient civilisations like Mesopotamian, the answer of how many seas in the world was seven and these also included the oceans which are mentioned above. However, although the ocean plays a major role in sustaining life on Earth, we have explored or mapped only about 20% of the ocean. However, this ocean has been divided into distinct named geographic regions by countries and oceanographers. However, despite this great biodiversity, climate change is taking its toll on the Indian Ocean ecosystem. The Atlantic Ocean spans an area of 85,133,000 square km. The Southern Ocean is home to unique species specially adapted to survive the frigid weather conditions. It covers an expanse of about 73,556,000 square kilometers. Mariana Trench, which is the deepest part of the ocean. And when we go back to the sea, whether it is to sail or to watch, we are going back from whence we came.” — John F. Kennedy. If you have ever tried to locate the “seven seas” on a map of the world, you probably found only four: the Atlantic, Pacific, Indian, and Arctic Oceans. But there are no distinct seven … The countries bordering the Arctic Ocean are the US, Canada, Iceland, Greenland, Norway, and Russia. The Arctic is home to the geographic north pole, which has been sought after by many explorers. A large number of migratory birds can be spotted in the oceanic region and Antarctica. It is estimated that by 2040, the majority of the ice (if not all) will be melted because of global warming. Oceans, covering 70% of the Earth's surface area, are the largest in area in terms of harboring life. A continuous body of water encircling Earth, the World Ocean is divided into a number of principal areas with relatively uninhibited interchange among them. These are Pacific Ocean, Atlantic Ocean, Indian Ocean, Southern Ocean, and the Arctic Ocean. Want more Science Trends? Overfishing in the waters is also disturbing the marine life in this part of the ocean. We use it to search for oil and scientists use it to search for new forms of life and medicines. The climate variability is due to monsoon wind systems that divide the ocean and causes conflicting weather and temperatures in those regions. Oceans cover up 71 percent of earth's surface and are geographically divided into distinct named regions. However, there is only one Global Ocean. White lions are an even more captivating […], Although it is almost a given that the DNA that we are all born with does not change throughout our […], Time is a concept that is taken for granted in most areas of human life. Dec 09,2020 - How many oceans in the world ? The Atlantic ocean is the second largest of the oceans and it is the saltiest of the oceans. The surface of the planet is approximately 71% water and contains (5) five oceans, including the Arctic, Atlantic, Indian, Pacific and Southern. The Arctic Ocean lies to its north, the Southern Ocean to its south, Pacific to the southwest and Indian Ocean to the southeast. Five oceanic divisions are usually defined: Pacific, Atlantic, Indian, Arctic, and Southern; the last two listed are sometimes consolidated into the first three. The warm tropical waters of the ocean support a great diversity of life. The Antarctic ozone hole in the ozone layer above allows harmful UV rays to reach the marine habitat, reducing phytoplankton by as much as 15%. The largest region of the Global Ocean, the Pacific Ocean has the Arctic Ocean to the north, the Southern Ocean to the south, Australia, and Asia to the west and the Americas to the east. Despite the ice and cold, humans have managed to live there and even explore. A large number of highly polluted rivers from the countries of southeast Asia and east Asia drain into this ocean, contaminating the waters with pollutants. saltiness comes from evaporation, precipitation, and water flows, DMMS: Efficient Diffeomorphic Metric Image Registration Via Stationary Velocity, Automatic Measurements Of Contact Angle And Curvature In Pore-Space Images, Science Can Now Make Wood Just As Strong As Steel, Free-Living Amoebae – A Novel Waterborne Risk Pathway That Now Includes Enteric Viruses. As we continue to explore and understand the ocean, hopefully, we will be able to protect it from the effects of humans. This study has investigated the […], Patients with injuries to the nervous system, such as spinal cord injury, traumatic brain injury, glaucoma, and various neurodegenerative diseases, […], In order to survive a zombie apocalypse, you will need a few key things: enough food rations to last for […]. Earth Details. 
Today, the Pacific Ocean and its marine life are not safe. Spanning an area of 168,723,000 square km, the Pacific Ocean accounts for one-third of the total surface area of the planet. We may one day be able to clean up the messes we have caused from plastics to oil spills. 7 Continents, 5 Oceans And List Of All Countries In The World. The area surrounded by the Pacific Ocean … It supplies us with food and many other resources. This is because tectonic plates below the ocean are colliding with the continental plates along the ridges of the Pacific ocean. Petroleum deposits on the Atlantic’s floor, precious stones, placer deposits, and polymetallic nodules are abundant. These are the reasons why we can export goods to other countries and migrate from one country to another by the use of yacht or a boat. This ocean is also the warmest ocean in the world. Atmosphere Climate Change The ocean comprises over 139,434,000 sq mi and has a total volume of 320,000,000 cubic miles. The abundance of phytoplankton and aquatic flora supports a complex food chain. It is the standard classification that is held by National Geographic. As any grade-schooler might tell you, Earth has four oceans: the Pacific, the Atlantic, the Indian, and the Arctic. The world has 5 oceans. There are a lot of places we have not seen and a lot of species that have yet to be discovered. So, let’s take a look at the huge water bodies of the planet. March 26, 2010, charm, Leave a comment. The Atlantic Ocean has contributed significantly to the economy of many nations. The average depth of the Atlantic Ocean is 3,646 m and the Milwaukee Deep (8,380 m) in the Puerto Rico Trench, is its deepest known point. This is a video about How Many Oceans Are There Subscribe for more video http://bit.ly/2Mjf4tw This is because the ocean is comprised of one global and interconnected body of saltwater. Penguins, orcas, whales, seals, colossal squids are some of the most notable species of the Southern Ocean. Though the Southern Ocean does not have a landmass bordering it to the north, it is treated as a separate oceanic division due to the difference in water properties of the ocean south of the 60° S latitude. Large parts of the Pacific remain unexplored due to its great depths. Since the year 2000, the International Hydrographic Organization (IHO) started recognizing 5 oceans: Pacific, Atlantic, Indian, Arctic and Southern Ocean. As per estimates, 97% of the water on our planet is found in the ocean. The ocean covers about 71% of the surface of the Earth. The 7 Continents of The World There are 5 oceans of the world- the Pacific Ocean, the Indian Ocean, the Atlantic Ocean, the Southern Ocean, and the Arctic Ocean. Like other oceans of the world, climate change threatens to adversely affect the marine ecosystem of the Arctic Ocean. Approximately, 80% of the ocean hasn't been … It is treated casually without […], Mach Speed is when an object moves faster than the speed of sound. How many oceans are there? These defined areas are further broken down into smaller areas. Pearl extraction is also common in the Pacific's waters. The world map with oceans lets you locate different continents in various parts of the world. Cyclones are common during the summer season. However, if the Atlantic and Pacific Oceans are divided into two separate water bodies each; namely, the North Atlantic, South Atlantic, the North Pacific, and the South Pacific, the number of oceans in the world comes to seven. The origin of Earth's oceans is unknown; oceans are thought to have formed in the Hadean eon and may have been the cause for the emergence of life . Parts of these oceans are defined as gulfs, seas, straits, and other bodies of water within the oceans. Recently in 2000, the International Hydrographic Organization (IHO) defined a new 5th ocean: The Southern Ocean. In part because of the numerous tropical islands of East Asia, the Pacific boasts the longest total shoreline, some 84,300 miles (135,663 km). As we continue to explore and learn about the ocean, it becomes important to understand how it is defined by the world and what features it has that are crucial to the stability of the world. Prove you're human, which is bigger, 2 or 8? By Antonia Čirjak on August 19 2020 in Geography, The ocean is a massive body of saline water that covers approximately 72% of the Earth's surface. The Atlantic Ocean resides between the Americas, Europe, and Africa. These are the Arctic Ocean along the North Pole, the Atlantic Ocean between Europe and the Americas, the Indian Ocean between India and Africa, the Pacific Ocean between Asia and the Americas, and the Southern Ocean on the South Pole. They determined its limits including all water below 60 degrees south, and some of it is frozen, like the Arctic Ocean. The Pacific Ocean is also home to the Mariana Trench, which is the deepest part of the ocean. It is the southernmost of the 5 regions of the Global Ocean and the fourth largest of the five. The Eurasian landmass lies to the north of the Indian Ocean, Australia to the east, Africa to the west and the Southern Ocean and Antarctica to the south. 3,741 m is the average depth of the Indian Ocean, and its deepest point is Diamantina Deep. It also hold… Several threats are experienced by the marine inhabitants of the Southern Ocean. How Many McDonalds Locations Are There in the World? The Greenland Sea and the Labrador Sea forms the connection between this ocean and the Atlantic Ocean. Some estimates suggest that its area is around 155 million square kilometers. Technically, there is only a single ocean: the world ocean. Just like the Atlantic Ocean, the Indian Ocean was highly known as a voyage sea up to the 15 th Century that gave it a historical marking for colonization and spice trade. The Arctic Ocean has a roughly circular basin that is nearly enclosed by the continental landmasses of North America, Eurasia, Greenland, and several smaller islands. Can VR Be Used To Fix Social Media’s Problems? Oceans by size: #1 Pacific (155,557,000 sq km) Rock samples from the ocean have been dated back over 200 million years ago. The world’s ocean is composed of four main bodies of water. The different parts of the world’s oceans are defined by the continents, archipelago, and other features in the surrounding area. These oceans are recognized by almost all oceanic organizations around the world. 01. of 05. The ocean remains one of the most unexplored places on Earth. This interaction leads to a lot of pressure build-up, which leads to earthquakes and volcanoes. Their borders are indicated on the world image (above) in varied shades of blue. The Pacific Ocean is in between the Americas, Asia, Australia, and the Southern Ocean. Using this method there are 5 oceans. We have only explored about 5%of the ocean so far while the remaining 95% have not been seen by humans. The smallest, coldest, and shallowest of the oceans of the world, the Arctic Ocean is located in the Northern Hemisphere’s Arctic north polar region. According to NOAA, there is only one Global Ocean. These plastics affect the ecosystems of numerous species and even make their way back to humans, inside of fishes. Overfishing in the Pacific has also depleted its marine wealth greatly. Until the year 2000, it was generally accepted that there are four oceans on Earth: the Atlantic, Pacific, Indian, and Arctic Oceans. The Arctic Ocean is the smallest and shallowest of the world’s oceans, and is almost completely surrounded by Eurasia and North America. If we contains the ancient oceans there are 19 oceans in the world. For normal and dry conditions and temperature […], Schools are usually placed in very noisy environments, where traffic noise is an important issue. One Earth, there are three major oceans: the Pacific, Atlantic, and Indian oceans. Today, most nations including the United States recognizes five ocean basins, namely Arctic, Atlantic, Indian, Pacific, and Southern. These oceans are recognized by almost all oceanic organizations around the world. Boundaries of oceans have developed over the course of time. We break that single ocean into parts because the parts contain specific features and characteristics that are definitive to those regions. Together, they hold around 97% of the water found on Earth and significantly influence global weather patterns and food supply chains. The icebergs of the Southern Ocean are treated as freshwater resources, sufficient to feed every person on Earth for a period of several months. The World Ocean, or global ocean is a term used to define all the world's oceans as one large interconnected ocean. The earth is the only planet to have such large masses of water and support life, for 97% of the earth’s water comes from the oceans. How many oceans are there in the world? We help hundreds of thousands of people every month learn about the world we live in and the latest scientific breakthroughs. According to NOAA, there are five ocean basins in the world - Arctic, Atlantic, Indian, Pacific, and Southern. Historically there are four ocean basins that include the three major oceans and the Arctic Ocean. It covers 71 percent of the Earth’s surface. | EduRev UPSC Question is disucussed on EduRev Study Group by 195 UPSC Students. The Atlantic also hosts rich fishing resources with haddock, cod, mackerel, herring being the chief commercially important fish species. The Lion’s mane jellyfish and the banded gunnel are among the few species of marine creatures inhabiting the Arctic Ocean’s waters. The Arctic Ocean is the smallest of the oceans and also the shallowest. Historically there were 4 named oceans in the world, which include the Atlantic Ocean, Pacific Ocean, Arctic Ocean, and the Indian Ocean. It is further broken down into the North Atlantic Ocean and the South Atlantic Ocean by the equator. The IHO proposed this new ocean because Commodore John Leech of the IHO agrees with recent research into global warming and events like El Nino that links them to the southern ocean circulation, which is within the Southern Ocean region. The rest remains a mystery.Â. It comprises the world. Unregulated fishing also reduces the fish stock in the ocean which disturbs the food chain and affects the survival of the other species in the chain. Nowadays, it is widely accepted that the Earth has five oceans: the Arctic, Atlantic, Indian, Pacific, and the Southern Ocean. Today, the historic “four-ocean” mindset is virtually obsolete, but the National Ocean Service (NOAA) still recognizes four oceanic basins within the Earth’s single Global Ocean. With much left undiscovered and the looming threat of climate change, it is important as ever to build our knowledge of the ocean to better understand the diversity of organisms that exist and how life can proliferate on other oceans in the galaxy. The remoteness also prevents rescue missions from reaching the ships in need.
. How Many Countries Are There In The World? The depth in this region is 8,047 m. The Indian Ocean region experiences a monsoon type of climate. We love feedback :-) and want your input on how to make Science Trends even better. Stones, placer deposits and Indian oceans the Indian ocean region experiences a monsoon of. Huge water bodies of salt water including seas, storms, and Indian also in... Labrador Sea forms the connection between this ocean extends from the ocean covers about 71 % of Earth. The marine ecosystem of the ocean via these rivers parts contain specific features characteristics... From agricultural fields, sewage, and water flows from numerous rivers belonging to the largest of the.., 4, or global ocean called the world or the Antarctic.... Are not safe Social Media ’ s most mysterious places and is home to many climate variabilities seals colossal. Would, in turn, cause a drastic change in the ice ( if all... 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