Ocean trivia gives us an impression of the depth of knowledge we have about the ocean and other natural water reservoirs. Ocean trivia is suitable for all ages filled up with many interesting and useful common basic facts about oceans. Yuly Shokalsky, a Russian oceanographer, first used the term “World Ocean” in the early 20th century to describe the continuous ocean that surrounds and covers the majority of Earth. Explore multiple choice ocean trivia questions and answers. The world ocean, global ocean, or great ocean are named for the vast, linked mass of salt water. Fundamental to oceanography is the idea of a continuous body of water with a relatively unrestricted movement among its components.
Oceans are the symbol of life. The oceans of the earth are directly helping the entire world survive for a long time in numerous ways. We are greatly indebted to the great pile of water, and we must preserve and save the oceans in order for our survival. Oceanus (/osins/; Greek: v keanós, pronounced [keanós]), the eldest of the Titans in classical Greek mythology, is credited with giving us the name ocean. Enjoy multiple choice ocean trivia questions and answers. The ancient Greeks and Romans considered Oceanus to be the divine embodiment of a vast river surrounding the globe. There is an Indo-European link to the idea of keanós. The Vedic epithet -áyna-, based on the dragon Vtra-, who seized the cows/rivers, has been linked to the Greek word keanós. On some early Greek vases, the Okeanos is shown with a dragon tail, which is related to this idea.
Ocean trivia is picked from many sources in order to enhance the general knowledge of the ocean. Possible magma seas existed on Earth during planetary creation. Current hypotheses suggest that an early atmosphere of carbon dioxide, nitrogen, and water vapor was formed by subsequent outgassing, volcanic activity, and meteorite strikes. It is believed that the gases and the atmosphere formed over millions of years. Find more MCQ ocean trivia questions and answers. When the Earth’s surface had drastically cooled, water vapor would have gradually condensed to create the planet’s first seas. Because of the high iron concentration, the early waters may have been substantially hotter than they are now.
The length of time that liquid water has existed on Earth is constrained by geological data. An Isua Greenstone Belt sample of pillow basalt, a kind of rock created during an underwater eruption, is proof that there was water on Earth 3.8 billion years ago. Share multiple-choice ocean trivia questions and answers. Rocks that have been dated at 3.8 billion years old by one research and 4.28 billion years old by another study in the Nuvvuagittuq Greenstone Belt in Quebec, Canada, indicate evidence of the existence of water at these ages.
Any geological evidence of earlier oceans either hasn’t been found yet or has already been obliterated by geological processes like crustal recycling. However, more recently, in August 2020, scientists discovered that the Earth may have always had enough water to fill the seas ever since the planet’s creation. Bookmark general knowledge ocean trivia questions and answers. According to this simulation, atmospheric greenhouse gases prevented the oceans from freezing while the Sun was still developing and only 70% as bright as it is now. Earth’s magnetic field began to form about 3.5 Ga, which helped stop the solar wind from destroying the atmosphere.
Multiple choice ocean trivia questions and answers
038- Ocean Trivia (50)
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Since its creation, the ocean has evolved, dividing into numerous different ocean basins and maybe even encompassing the entire planet at periods. More ice caps and glaciers develop during colder climate periods, and enough water from the world’s water supply builds up as ice to reduce the levels in other phases of the water cycle. The opposite is true when it’s warm. The oceans were around 122 m (400 ft) lower than they are now as a result of the last ice age when glaciers covered about a third of Earth’s land mass. Roughly 125,000 years ago, during the previous global “warm period,” the waters were about 5.5 m (18 ft) higher than they are now. The waters might have been up to 50 m (165 ft) higher about three million years ago.
Earth’s global ocean, also known as the world ocean, covers 70.8% of the planet’s surface and holds 97% of the water on Earth. This makes Earth, together with its thriving hydrosphere, a “water world” or “ocean world,” especially during the early history of Earth when it is speculated that the ocean may have totally covered the planet. Since the ocean dominates Earth’s surface unevenly and has an irregular form, the ocean may be divided into several oceans and the Earth’s surface can be divided into water and land hemisphere. The major oceanic divisions are called after the closest continents, different archipelagos, and other factors. They are shown below in descending order of area and volume. Oceans are surrounded by coasts that extend over a total of 360,000 kilometers. Additionally, they are linked to smaller, nearby bodies of water including oceans, gulfs, bays, bights, and straits. There are five main oceans that makeup roughly 361,000,000 km2 (139,000,000 sq mi) of seawater.
A mid-ocean ridge exists in every ocean basin, forming a vast mountain range below the sea. Together, they make up the world’s largest mountain range, the global mid-oceanic ridge system. There are mountains for 65,000 km (40,000 mi) in all directions. The Andes, the largest mountain range on land, is dwarfed by this underwater mountain range in length. Less than 20% of the oceans have been charted, according to oceanographers. The unknown is the genesis of the waters on Earth. Ocean formation is assumed to have occurred during the Hadean eon, which may have contributed to the appearance of life. The Earth’s primordial composition is thought to have included a large amount of water.
When the Earth was younger and less massive, water molecules might have more readily escaped the gravitational pull of the planet. The term for this is atmospheric escape. Find more multiple-choice ocean trivia questions and answers. The shoreline and composition of the world ocean are constantly changing due to plate tectonics, post-glacial rebound, and sea level rise. Earth has had a worldwide ocean in some form or another for ages. There are around 1.335 billion cubic kilometers of water in all the oceans (1.335 sextillion liters, 320.3 million cubic miles).
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