Question: What Are The 3 Major Ocean Currents?

How much of the ocean is whale pee?

Even though we haven’t hunted them on an industrial scale for decades, the ocean is still missing 66 to 99 percent of its blubbery behemoths.

Blue whales, which urinate so prolifically, are at just 1 percent of their historic numbers in the Southern Hemisphere..

What are the 5 major ocean currents?

There are five main gyres: the North and South Pacific Subtropical Gyres, the North and South Atlantic Subtropical Gyres, and the Indian Ocean Subtropical Gyre.

What four things affect gyres?

A gyre is a large system of rotating ocean currents. Together, these larger and more permanent currents make up the systems of currents known as gyres. Wind, tides, and differences in temperature and salinity drive ocean currents.

Which best describes how ocean currents are created?

Answer Expert Verified. Explanation: The main reason by which the ocean currents are formed is the rotation of earth. The earth rotates on its own axis and due to this reason there is a huge mixing of the water from the equator and poles which is termed as ocean currents.

What are 2 types of ocean currents?

There are two types of currents, surface currents and deep water currents, that dictate how and where water will move.

What are the 7 major global currents?

There are five major ocean-wide gyres—the North Atlantic, South Atlantic, North Pacific, South Pacific, and Indian Ocean gyres. Each is flanked by a strong and narrow “western boundary current,” and a weak and broad “eastern boundary current” (Ross, 1995).

Which ocean zone is the deepest?

The water temperature is constantly near freezing and only a few creatures can be found at these crushing depths. The deepest zone of the ocean, the hadalpelagic zone extends from 19,700 feet (6,000 meters) to the very bottom at 36,070 feet (10,994 meters) in the Mariana Trench off the coast of Japan.

Why is ocean water salty?

Why is the sea salty? Salt in the sea, or ocean salinity, is mainly caused by rain washing mineral ions from the land into water. Carbon dioxide in the air dissolves into rainwater, making it slightly acidic. When rain falls, it weathers rocks, releasing mineral salts that separate into ions.

Can you drink ocean water?

Drinking seawater can be deadly to humans. Seawater contains salt. When humans drink seawater, their cells are thus taking in water and salt. … Therefore, to get rid of all the excess salt taken in by drinking seawater, you have to urinate more water than you drank.

How deep do ocean currents go?

Ocean currents are located at the ocean surface and in deep water below 300 meters (984 feet). They can move water horizontally and vertically and occur on both local and global scales.

Why are there currents?

Ocean currents can be caused by wind, density differences in water masses caused by temperature and salinity variations, gravity, and events such as earthquakes or storms. Currents are cohesive streams of seawater that circulate through the ocean.

What are the 3 types of ocean currents?

Two major kinds of currents define the planet’s oceans: surface currents driven by wind and deep-water currents driven by variations in seawater density.Surface Currents. ••• … Deep-water Currents. ••• … Measuring Currents. ••• … Currents vs. Tides. … Ocean Currents & Humankind. •••

What are the main ocean currents?

There are five main gyres: the North and South Pacific Subtropical Gyres, the North and South Atlantic Subtropical Gyres, and the Indian Ocean Subtropical Gyre. These surface currents play an important role in moderating climate by transferring heat from the equator towards the poles.

What are ocean currents short answer?

An ocean current is a continuous movement of ocean water from one place to another. Ocean currents are created by wind, water temperature, salt content, and the gravity of the moon. … One major example of an ocean current is the Gulf Stream in the Atlantic Ocean.

What are the two types of currents?

There are two different types of current in widespread use today. They are direct current, abbreviated DC, and alternating current, abbreviated AC. In a direct current, the electrons flow in one direction.

Which zone of the ocean is the warmest?

The top surface layer is called the epipelagic zone, and is sometimes referred to as the “ocean skin” or “sunlight zone.” This layer interacts with the wind and waves, which mixes the water and distributes the warmth. At the base of this layer is the thermocline.

Which is the scariest ocean?

The deepest point is in the Pacific Ocean in the Mariana Trench, a section of earth that spans more than 1,500 miles. At its lowest point — the Challenger Deep section of the trench — the ocean floor sits more than 36,000 feet below sea level, a height that scales the summit of Mount Everest plus another 7,000 feet.

Where are the strongest ocean currents?

The strongest and most renown surface ocean currents are the Gulf Stream, that travels from the Caribbean Sea, along the East coast of North America and across the Atlantic Ocean to Europe, and the Kuroshio Current in the North Pacific Ocean off the East coast of Asia.

What is the main cause of ocean currents?

Ocean currents can be caused by wind, density differences in water masses caused by temperature and salinity variations, gravity, and events such as earthquakes or storms. Currents are cohesive streams of seawater that circulate through the ocean.

What are two main factors that affect deep ocean currents?

Unlike surface currents, which are driven by interactions with sun and wind, deep currents are caused by the interaction between temperature and water density. The higher the salt content of water, the more dense it is. Dense water is heavier than less dense water, and thus will sink because of gravity.

What are the 7 ocean zones?

Terms in this set (30)Intertidal Picture.Oceanic. area past the continental shelf (zone based on distance from shore)Benthic. ocean bottom at all depths (zone based on depth)Pelagic. open sea (zone based on depth)Epipelagic. … Mesopelagic. … Bathypelagic. … Abyssalpelagic.More items…