Equilateral Triangle: A triangle with all the sides of same length is called equilateral triangle. Isosceles Triangle: A three-sided polygon with at least two sides of the same length is called isosceles triangle. Scalene Triangle: A three-sided polygon with no sides of the same length is called scalene triangle.
Scientists Declare The Great Barrier Reef Dead At 25 Million Years. The Great Barrier Reef is considered Australiaâs national treasure as it once was filled with marine life, amazing coral reefs, and crystal clear waters. The incredible Coral Sea Wilderness has been declared dead by scientists at 25 million years old â ending its years of struggle and illness. However, locals claim that the reports of its demise have been exaggerated and there is plenty of life left in the worldâs largest barrier reef.
Yes. In 1981, the Great Barrier Reef gained international recognition through its inscription on the World Heritage List. The Great Barrier Reef World Heritage Area is the wor â¦ ld's largest and is one of only a few World Heritage Areas that satisfy all four natural World Heritage Criteria.nswered by The Community. Making the world better, one answer at a time. The reason for it being a world heritage site is because it holds so many beautiful features like fish, coral and mammals. The Great Barrier Reef is UNESCO World Heritage listed because it is the largest coral reef in the world.