An ocean current is "any more or less permanent or continuous, directed movement of ocean water that flows in one of the Earth's oceans," according to ScienceDaily.com. Currents are created by a variety of forces.
Wind, temperature differences, water density and salinity all play a role in generating ocean currents. Currents may also be influenced by external forces, such as earthquakes, the coriolis effect produced by the Earth's rotation, and the gravitational pull of the Moon.
According to the University of Southern California, the two types of ocean currents are surface currents, also know as surface circulation, and deep water currents also called thermohaline circulation. These currents make up 10 percent and 90 percent of all the water in the ocean respectively.
Although the ocean is one enormous and interconnected body of water, it is broken up into four regions. The four ocean regions are the Atlantic, Pacific, Indian and Arctic.
The sailfish is the fastest animal in the ocean and can swim at a speed of 68 miles per hour while the marlin is the second fastest animal in the ocean swimming at speeds of approximately 49 miles per hour. The cheetah is considered the fastest land animal and can run at speeds of 70 miles per hour
As a system of interconnected bodies of salt water, oceans cover 70 percent of the earth's surface and hold 97 percent of the planet's water supply. The five major oceans of the world are the Pacific Ocean, the Atlantic Ocean, the Indian Ocean, the Southern Ocean and the Arctic Ocean.
Only about 30 percent of the Earth's surface is dry land, oceans make up the remaining 70 percent. Earth's oceans are home to hundreds of thousands of marine life forms, but because most of the ocean depths remain unexplored, hundreds of thousands or even millions of unclassified life forms may exis
The "Heart of the Ocean" was never found because it was only a fictional piece of jewelry featured in the James Cameron film, "Titanic." The British jewelers Asprey & Garrad were consigned to fashion the blue diamond necklace for the movie.
Factors that limit the type of life forms able to live in an ocean environment include temperature, sunlight, pressure, oxygen concentration and nutrient availability. Because of its many varied attributes, the ocean offers a unique home to aquatic life.
The original four oceans are the Pacific, Atlantic, Indian and Arctic; however, the International Hydrographic Organization recognized the Southern Ocean as the fifth ocean on Earth in the spring of 2000.