Australia - the smallest continent, 7.8 billion - the number of people on Earth, Greenland - the largest island in the World, the Moon - Earth's only natural satellite, Asia - the largest continent, 149.600.000 km - the distance between Earth and the Sun, United Nations - UN - an organisation which promotes international cooperation, a volcano - a mountain with a large opening at the top through which gases and lava,

Geography - Planet Earth

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