How many continents on Earth are inhabited by people
As a rule, the question of how many continents on Earth is put on exams at school. At first glance it may seem that every student can easily answer it without prior preparation. However, the practice suggests otherwise. The fact is that in describing the structure of our planet various concepts and formulations are used. More than 70% of the earth’s surface is covered by the water of the world's oceans. The rest is occupied by land. And this firmament, in turn, is conditionally divided into certain fragments, which are classified according to certain characteristics.
Continents and parts of the world
Before finding out how many continents there are on Earth, it is necessary to define these objects. The land surface is conventionally divided into parts of the world. According to the system adopted in all countries, the earth's surface is divided into six parts of the world - this is Australia and Asia, America and Antarctica, Africa and Europe.As a result of tectonic movements, a significant land area was in the northern hemisphere. Here are all Asia and Europe, as well as North America and a significant part of Africa. It so happened that when dividing land into continents, they also counted six - these are Australia and Antarctica, Africa and Eurasia, and North and South America.
According to the accepted criteria, the continent is called the land part, washed from all sides by water. Unlike the island, this is a large part. Based on this, it is easy to determine how many continents on Earth exist at the moment. The result is the same magic number 6. Only some names will be slightly changed - Eurasia and Africa, North America and South America, Australia and Antarctica. It is interesting to note that the continent of Australia is present in all three lists. As early as the 19th century, America — North and South — was considered one continent. However, after the Panama Canal was commissioned, it was divided into two separate objects.
Conventions and features
It should be noted that such a complex classification of objects on the Earth’s surface creates certain difficulties in studying this topic.Answering the question about how many continents on Earth, you need to know all the above listed subtleties. For example, the nearby parts of the world Europe and Asia accounting specialists unite in one continent, which is called Eurasia. In turn, part of the world America is divided into a couple of continents - the northern and southern parts. According to research by geologists, land was originally one large continent called Pangea. As a result of the processes taking place in the bowels of the Earth, it split into pieces, which began to move in different directions.
Studying the nature and living conditions of living matter, scientists seek to find out how many continents on the planet are adapted for life. Of particular interest is the evolution of man and his migration on Earth. To date, only Antarctica remains untapped and not populated by the continent.