General ideas about the surface of the Earth

The surface area of ​​the globe is 510 million km2. Most of it is 361 million km2 – is occupied by the World Ocean, and on the land there are 149 million km2 of area. So, the oceans and continents are the largest natural complexes within the geographical envelope of our planet.

The world’s ocean is the largest component of the wave of the Earth’s shell. It consists of four oceans: Pacific, Atlantic, Indian and Arctic. These oceans divide the land into continents and islands. The continents are large areas of land, washed from all sides by water. Continents six: Eurasia, Africa. North America. South America, Australia, Antarctica. Near the mainland are different but the origin of the island.

Along with the division of the earth’s land into continents, it was conditionally divided into parts of the world, depending on the time of discovery by the Europeans. So. Ancient Greek scientists distinguished only two parts of the world Europe and Asia. During the Roman Empire, the name of the third part of the world appeared – Africa. Because Europe. Asia and Africa are known to Europeans long ago, they are called the Old World. The North and South America, discovered by H. Columbus at the end of the 15th century, were named the New World. Even later, Australia and Antarctica were discovered. The composition of each part of the world includes not only the continents, but also the islands located near them.

So, the number of parts of the world is equal to the number of continents.

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General ideas about the surface of the Earth