What is the total land area of earth approximately in square kilometers?
The correct answer and explanation is:
The total land area of Earth is approximately 148.94 million square kilometers. This is the area that includes all continents and islands. Earth’s surface is made up of both land and water, with about 71% of the surface covered by oceans and seas, and the remaining 29% consisting of land.
The land area includes the seven continents: Asia, Africa, North America, South America, Antarctica, Europe, and Australia. Asia is the largest continent by land area, covering about 30% of the Earth’s land. Africa comes second, followed by North America and South America. Antarctica, although being a vast landmass, is largely covered by ice and not suitable for habitation. Europe is smaller in size compared to the other continents, and Australia, which is both a country and a continent, is the smallest of the continents.
Land distribution is also affected by geographical features such as mountains, deserts, forests, and grasslands. For example, large portions of Africa and Asia are covered by deserts, while Europe and North America have extensive forested areas. The global land area also includes islands, which, although small compared to the continents, contribute significantly to Earth’s total landmass.
When considering the distribution of land, it is important to recognize that not all of it is habitable or suitable for human settlement. A significant portion of Earth’s land area consists of wilderness, such as forests and deserts, or is located in regions that are difficult to access due to terrain or climate conditions.
In summary, while Earth’s land area is about 148.94 million square kilometers, its distribution is uneven, with varying conditions across different regions, affecting both biodiversity and human habitation.