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Great barrier reef
A Coggle Diagram about Farm run off (Animal urine and poo, Releases harmful pesticides into rivers nearby, these rivers go into the sea and onto the reef , Rivers near farms , Pesticides run from the cows poo into the rivers and onto the reef , Cows in farms near the reef , The poo and urine the cows and animals let off, go down under the ground, go into underground rivers and pollute the bigger rivers , CAUSES and EFFECTS), Tourism (More travelling people, More boats going out to the reef and polluting it , Advertisment , Pollution in the water, fish take in the toxins and die , Tourist numbers rising , The more popular the reef becomes, the more ways there are to see the reef, flying, boat etc polluting the water and the air , CAUSES and EFFECTS), Global warming (Habitats being destroyed , Manufactures and buildings, Ice melting , Evolution, Sea levels rising , infrastructures , EFFECTS and CAUSES) and Commercial fishing (fish market , Amount of fish caught each day in the barrier reef is rising , More people eating fish , Loss of fish population, Over fishing in the great barrier reef is cutting population , Fishers leave anything they do not need out at sea, rubbish, fish scraps etc, CAUSES and EFFECTS )