Australia's Great Barrier Reef is one of the world’s most diverse ecosystems. It is the largest structure on Earth that is made by living organisms and can be seen from space. The reef spans an area of 344,400 square kilometers. It is made up of hundreds of breathtakingly beautiful tropical islands and over 2,900 individual reef systems, which are home to an abundance of marine species.
Australia is the largest island-country in the world and has a population of about 22 million people. Human activities on the island, such as fishing, diving, and tourism, have had a devastating effect on the wildlife in some parts of the reef. The establishment of protected areas, such as the Great Barrier Reef Marine Park, has helped to limit the negative impacts of human use, but environmental scientists and marine biologists say more must be done to preserve this natural wonder of the world.
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