Dictionary entry overview: What does accretion mean? â¢ ACCRETION (noun) The noun ACCRETION has 6 senses: 1. an increase by natural growth or addition 2. something contributing to growth or increase 3. (astronomy) the formation of a celestial object by the effect of gravity pulling together surrounding objects and gases 4.
Great Barrier Reef. The Great Barrier Reef is the world's largest coral reef system composed of over 2,900 individual reefs 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). The reef is located in the Coral Sea, off the coast of Queensland, Australia.
Considered one of the great natural wonders of the world, the Great Barrier Reef sits off the northeast coast of Australia. It is located in the Coral Sea and extends for a length of around 2300 km down the coast of the eastern state of Queensland.It is actually a series of reefs and atolls, with its northern end just south of Papua New Guinea. It is the largest coral reef in the world.Australia has almost one-fifth of the world's reef area most of which is located in the Great Barrier Reef. It is the largest structure on earth created by living things, hosts millions of ocean-living creatures, and can be seen from space.t is located in the Coral Sea and extends for a length of around 2300 km down the coast of the eastern state of Queensland. It is actually a series of reefs and atolls, with its northern end just south of Papua New Guinea. It is the largest coral reef in the world.