1. Nature reserves in Australia

2. The Great Barrier Reef – Wielka Rafa Koralowa The Great Barrier Reef can be seen from outer space and is the world's biggest single structure made by living organisms. This reef structure is composed of and built by billions of tiny organisms, known as coral polyps. It supports a wide diversity of life and was selected as a World Heritage Site in 1981.

4. A large part of the reef is protected by the Great Barrier Reef Marine Park, which helps to limit the impact of human use, such as fishing and tourism. Other environmental pressures on the reef and its ecosystem include runoff, climate change accompanied by mass coral bleaching, and cyclic population outbreaks of the crown-of-thorns starfish.

6. Pollution - Zanieczyszczenia Another key threat faced by the Great Barrier Reef is pollution and declining water quality. The rivers of north eastern Australia pollute the Reef during tropical flood events. Over 90% of this pollution comes from farm runoff. 80% of the land adjacent to the Great Barrier Reef is used for farming including intensive cropping of sugar cane, and major beef cattle grazing.

8. Great Barrier Reef is home to many species of fish, mollusks and plants. In addition to the approximately 1,500 species of fish, the reef there are more than 5000 species of mollusc and 400 species of coral and 500 species of seaweed. Larger islands are covered with dense tropical vegetation. The Great Barrier Reef is one of Australia's major tourist attractions.

9. Fauna reef – fauna rafy The greater part of the coral is white. It is a substance, which built a skeleton now dead polyps. While the living polyps have a rich color scheme. Various species of coral - fan- shaped and feathery, and related to them, sponges and other creatures come in many colors, from red, yellow, through orange, and purples, pinks and greens.

10. The crown-of-thorns starfish korona z cierni rozgwiazdy

11. Maps

12. Source www.wikipedia.org Wykonała : Karolina Błaszczyk