The Great Barrier Reef
Non-living things underwater include rocks, sand, coral reefs, shipwrecks, and human-made structures like submarines or buoys.
The first hard layer is the Lockport Formation, which is made from limestone. The secound is softer, and is the Rochester Formation, and is made from shale and some very thin limestone bits. The third layer is underwater, and is Queenston Formation, which is made from shales and fine sandstone.
coral is a plant. usually underwater, it grows on a reef. therefore you get a coral reef.
Corals are made up of tiny animals called polyps.
The first hard layer is the Lockport Formation, which is made from limestone. The secound is softer, and is the Rochester Formation, and is made from shale and some very thin limestone bits. The third layer is underwater, and is Queenston Formation, which is made from shales and fine sandstone.
The difference is in the name; soft corals have a soft body, with no bony or hard parts. In contrast, hard corals have a hard endoskeleton made of calcium carbonate.
they are called polyps.
You will see a large and magnificent rock formation made by erosion.
Limestone is made up out of fossils of corals and shells from the water.
Yellowstone is naturally occurring. It is the result of a very large volcano.
A sedimentary rock called coquina.
The movie "Titanic" was made with a fake Titanic, as the real one was still underwater.