Underwater Beauty

0 Shares
0
0
0

Underwater is a term describing the realm below the surface of water where the water exists in a natural feature  such as an ocean, sea, lake, pond, or river. Three quarters of the planet Earth is covered by water. A majority of the planet’s solid surface is abyssal plain, at depths between 4000 and 5500 m  below the surface of the oceans. The solid surface location on the planet closest to the center of the orb is the Challenger Deep, located in the Mariana Trench at a depth of 10,924 m  under the sea. Although a number of human activities are conducted underwater—such as research, scuba diving for work or recreation, or even underwater warfare with submarines—this very extensive environment on planet Earth is hostile to humans in many ways and therefore little explored. An immediate obstacle to human activity under water is the fact that human lungs cannot naturally function in this environment. Unlike the gills of fish, human lungs are adapted to the exchange of gases at atmospheric pressure, not liquids. Aside from simply having insufficient musculature to rapidly move water in and out of the lungs, a more significant problem for all air breathing animals, such as mammals and birds, is that water contains so little dissolved oxygen compared with atmospheric air. Air is around 21% O2; water typically is less than 0.001% dissolved oxygen.

0 Shares
You May Also Like

Black and White Old Pictures of Pets

Keep in themselves represent a kind of memories, especially when they are on your pets ... especially when you find something like this and these are pictures in black and white from the beginning and middle of the twentieth century ...

Alaskan Malamute Cute Puppies

The Alaskan Malamute is a generally large, wolf-like breed of domestic dog originally bred for use as an Alaskan sled dog. They are sometimes mistaken for a Siberian Husky, but in fact are quite different in many ways. Malamutes have a very quiet temperament and are often loyal to their owners.

Top 10 Deadliest Spiders

Spiders are one of the smallest but most lethal creatures. Fear of spiders in some people it is quite reasonable because the spider venom can kill several people or animals at once.

13 Very Expensive Animals

There are a lot of people who really love animals. My love show and prove in many different ways. One way is the large number of pets the same type and the separation of large amounts of money for their daily comfort and life.

Top 10 Best Kind Of Pet Parrots

Parrots were represented for a long time favorite pet people. All of the Middle Ages and the famous captains of ships up to the present day in cages and in the free home version. Parrot is a common choice for a pet because they belong to the brightest line between pets and birds for long life. Some species of parrots can survive man.