Answer:
The correct option is A. It is the largest single structure created by organisms and is the largest coral reef in the world.
Explanation:
The Great Barrier Reef comprises of about two thousand and nine hundred reefs. This Great Reef covers an area of about 900 islands. The Great Barrier Reef is such huge that it can be seen from the outer space. Millions of tiny organisms which are known as corals polyps make up the Great Barrier Reef. The Great Barrier Reef is a wonder because it is the largest single structure made by humans and hence its name was suggested to be among the natural wonders of the world.
Answer:
Option A - The Great Barrier Reef is the largest single structure by organisms and is the largest coral reef in the world.
Explanation:
The Great Barrier Reef in the Coral Sea in Queensland, Australia is so large, that it can even be viewed from the outer space. This entire living structure is very large covering a vast area and is completely constructed by millions of tiny living organisms called the coral polyps.
It plays host to a huge diverse population of marine organisms including sharks, turtles, fishes etc. Hence, the entire reef is a protected and a World Heritage Site as declared by UNESCO.
The whole unit is formed with various reefs, islands and passages which are breathtaking to see along with the marine life surviving in it and accordingly named as one of the seven natural wonders of the world.
