Which ocean covers 1/3 of the earth?

Which ocean covers 1/3 of the earth?

the Pacific Ocean
The world’s largest geographic feature, the Pacific Ocean covers more than 166 million square kilometers (more than 64 million square miles)—about one-third of the earth’s surface.

What is the 3rd ocean?

The Indian Ocean is the third largest ocean. This body of water stretches between Africa, the Southern Ocean, Asia, and Australia.

Do oceans cover 2/3 of the earth?

To break the numbers down, 96.5% of all the Earth’s water is contained within the oceans as salt water, while the remaining 3.5% is freshwater lakes and frozen water locked up in glaciers and the polar ice caps. Of that fresh water, almost all of it takes the form of ice: 69% of it, to be exact.

How do you calculate sea level rise?

The Short Answer: NASA measures sea level around the globe using satellites. The Jason-3 satellite uses radio waves and other instruments to measure the height of the ocean’s surface – also known as sea level. It does this for the entire Earth every 10 days, studying how global sea level is changing over time.

What ocean is the deepest?

western Pacific Ocean
The average depth of the ocean is about 3,688 meters (12,100 feet). The deepest part of the ocean is called the Challenger Deep and is located beneath the western Pacific Ocean in the southern end of the Mariana Trench, which runs several hundred kilometers southwest of the U.S. territorial island of Guam.

How are oceans divided?

Geographers divide the ocean into five major basins: the Pacific, Atlantic, Indian, Arctic, and Southern. Smaller ocean regions such as the Mediterranean Sea, Gulf of Mexico, and the Bay of Bengal are called seas, gulfs, and bays.

What percentage of the Earth is salt water?

97%
Of all the water that exists on our planet, roughly 97% is saltwater and less than 3% is freshwater. Most of Earth’s freshwater is frozen in glaciers, ice caps, or is deep underground in aquifers.

Where do we depend on the oceans?

Wherever we live, whether in a large city or close to a sandy beach, we all depend on the oceans. From the frozen ice caps of the polar regions to the warm waters of the tropical coral reefs, from deep sea vents to shallow seagrass beds, the oceans contain the greatest diversity of life on Earth.

What is the Ocean trying to tell us?

The ocean is sending us a very clear message: if you just give me some space, look what I can do.” A sea turtle surveys the reefs surrounding the Gili Islands in Indonesia. So far, says Sala, only 2.5% of the ocean enjoys the full protection it needs to do so.

How much does the volume of the ocean change over time?

Over the “short term” of hundreds of years the oceans’ volumes don’t change much. But the amount of water in the oceans does change over the long term. During the last Ice Age, sea levels were lower, which allowed humans to cross over to North America from Asia at the (now underwater) Bering Strait.

What is the water cycle of the oceans?

The oceans contain the vast majority of all water on Earth. The water cycle sounds like it is describing how water moves above, on, and through the Earth… and it does. But, in fact, much more water is “in storage” for long periods of time than is actually moving through the cycle.