The Great Barrier Reef is not a man-made structure. As it has been built by coral polyps, it continues to be built upon constantly. The Great Barrier Reef is constantly being regenerated, in natural, fluctuating cycles.
No. The Great Wall of China was built as a defensive barrier against invading armies.
The reef wasn't built. It was formed naturally, about four thousand years ago..
no cause its natural!!!
According to most sources, the Great Barrier Reef was only built between 2000 and 10 000 years ago - some time after any of the significant ice ages.
The Great Wall was built to a great height to serve as a defensive barrier against invasions from nomadic tribes and other enemies. The height of the wall made it more difficult for attackers to breach and provided a strategic advantage for the defenders.
Great Barrier Reef
The proper name for the Great Barrier Reef is simply "Great Barrier Reef".
I think the largest structure built by living creatures is The Great Barrier Reef in Australia. Because it stretches 2,300km. It is built by organisms underwater who have died and left their calcium carbonate skeleton left.
The great barrier reef is awesome
The Great Barrier Reef has not been destroyed
The Great Barrier - film - was created in 1937.