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Earth, the most important place you know is about the size of an average sunspot. The total land coverage is 29.2% of Earth's surface, the rest of its surface area of 70.8%, you can guess, is of water). Compared to other planets our world is almost twice the size of Mars, and it is just a little larger than Venus.
RUSSIA: Largest country in the world. Encyclopaedia Britannica (EB): 17,075,400 km²
Area (km²)17,098,242