Three-quarters of our Earth’s surface is covered by oceans. But the oceans are still something we cannot fully understand, as only less than 5% of our humans survey the oceans. Oceans are home to countless living organisms more than those living on land. Many times Under this vast deep blue water, there are many interesting things to know. And here are 7 of the most stunning facts beneath the world’s oceans that you may not have known yet.
1. the lowest point of the earth’s crust
The lowest point of the Earth’s crust lies beneath the Pacific Ocean, in an area known as the Challenger Deep, within the Mariana Trench, located near Guam, about 2,300 km east of the Philippines. This is 11,000 meters deep, much more than the height of Mount Everest. There are fewer humans who have been to this point than astronauts who have stepped on the moon. To date, only 3 people have visited and the most recent one is Hollywood movie director James Cameron.
2. A waterfall under the ocean
In one section of the Danish Channel between Greenland and Iceland in the Arctic Ocean, there is a giant underwater waterfall called the Denmark Strait cataract. It measures 160 kilometers wide and reaches 3,500 meters in height, the massive height of the southern waterfall. This water made all the great waterfalls that exist on the earth’s surface to look small. For example, the tallest waterfall in the world, Angel Falls, is less than a third of the height of Denmark Strait Falls, or the famous Niagara Falls, one of the world‘s largest waterfalls. 2000 times less than this underwater waterfall.
3. The most remote point from the land
Point Nemo is the most distant point in the world, located in the Pacific Ocean between Australia and South America. And Antarctica It is the point that is the furthest from the surrounding land in all directions. This point may be called the center of the largest circle that can be written on the ocean, without which its circumference does not touch the land at all, and the radius of this circle is 2,600 km, which is the shortest distance from this point to the coast. The name Point Nemo is taken from Jules Verne’s novel Captain Nemo, the world-renowned science fiction writer.
In the past, about 3 million shipwrecks have sunk into the sea, said to be an enormous amount of wealth and belongings, valued at over US $ 60 billion. It has been estimated that submerged historical treasures and artifacts are greater than those of all museums around the world combined. The seafloor has therefore become a huge treasure chest that many people are trying to always own.
5. Dead zone in the ocean
Although almost 95% of all life on Earth lives in the ocean. But not all living things are able to live anywhere in the ocean. There are areas where the oxygen content of the water is so low that no living organisms can live. These areas are called “dead zones”. In the past, there may be dead zones in open sea waters that are some distance from the shore. But the effects of climate change due to global warming over the past decades have resulted in a dramatic increase in the ocean dead zone. In particular, there were more than 500 dead zones near the coast.
6.Earth’s oxygen supply
Everyone knows that trees produce oxygen through photosynthesis. Forests are an important source of oxygen production. But the world’s largest oxygen producer is the ocean. About 70% of the oxygen in the atmosphere comes from tiny organisms that live beneath the surface of the sea and float in the water. They are phytoplankton. (Phytoplankton) that also produces oxygen through photosynthesis. Phytoplankton is made up of diatoms. Green algae, golden algae, dinoflaggellate And cyanobacteria (Blue-green algae) are considered essential ecosystems as they are the primary producers of food chains and fibers.
7. Why is that blue sea?
When asked what color the sea is, most of the answers are either blue or sky, although in reality the water is clear and colorless. But what we see in the sea is blue or blue because sea water has good absorption properties of red, yellow, green light.When sunlight passes into the sea, the red, yellow, green light is absorbed completely by the water, leaving only a light tone. The blue reflected in our eyes The color of the sea also depends on the contamination of the water. The deep sea has very little impurities and therefore appears dark blue. Along the coast, the sea water is more contaminated, so it is seen as blue or sometimes green and possibly other colors depending on the color of the impurity.