how much land does the great barrier reef cover
Great Barrier Reef The Great Barrier Reef is the world's largest coral reef system[1][2] composed of over 2,900 individual reefs[3] and 900 islands stretching for over 2,300 kilometres (1,400 mi) over an area of approximately 344,400 square kilometres (133,000 sq mi).[4][5] The reef is located in the Coral Sea, off the coast of Queensland, Australia. The Great Barrier Reef can be seen from outer space and is the world's biggest single structure made by living organisms.[6] This reef structure is composed of and built by billions of tiny organisms, known as coral polyps.[7] It supports a wide diversity of life and was selected as a World Heritage Site in 1981.[1][2] CNN labelled it one of the seven natural wonders of the world.[8] The Queensland National Trust named it a state icon of Queensland.[9]
Marcus Álvarez
Earth Earth's lithosphere is divided into several rigid tectonic plates that migrate across the surface over periods of many millions of years. About 71% of Earth's surface is covered with water, mostly by oceans.[29] The remaining 29% is land consisting of continents and islands that together have many lakes, rivers and other sources of water that contribute to the hydrosphere. The majority of Earth's polar regions are covered in ice, including the Antarctic ice sheet and the sea ice of the Arctic ice pack. Earth's interior remains active with a solid iron inner core, a liquid outer core that generates the Earth's magnetic field, and a convecting mantle that drives plate tectonics.
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