The answer to your question is Niagara Falls
The Great barrier coral reef is located alongside the north-eastern shores of Australia, int the waters of the Pacific Ocean. It is by far the most recognizable coral reef in the world, and it is also one of the biggest tourist attractions of Australia.
The slopes of most cinder cones are usually about 30 degrees because that is the angle of repose, which is the slope at which the loose cinder can stand in equilibrium.
The cinder cones vary significantly in height, from just a few meters of height to few hundred meters.
They are numerous around any volcano, and lava can come out of them or may flow below them.
