Planets similar to or like Earth
Third planet from the Sun and the only astronomical object known to harbor life. Wikipedia
- At about 30.3 million km2 (11.7 million square miles) including adjacent islands, it covers 6% of Earth's total surface area and 20% of its land area.
- North America covers an area of about 24,709,000 square kilometers (9,540,000 square miles), about 16.5% of the Earth's land area and about 4.8% of its total surface.
- It covers approximately 20 percent of Earth's surface and about 29 percent of its water surface area.
- Although often inconspicuous, fungi occur in every environment on Earth and play very important roles in most ecosystems.
- Africa is considered by most paleoanthropologists to be the oldest inhabited territory on Earth, with the human species originating from the continent.
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