A coral reef is made of thin layers of calcium carbonate. Coral polyps form a living mat over a calcium carbonate skeleton. Stony corals (or scleractinians) are the corals primarily responsible for laying the foundations of, and building up, reef structures.
The kinetic energy that occurs when your hands are rubing together
Usually under ground springs, or sometimes hollowed earth beneath solid earth where the water pools.
Answer:
keratin, collagen, and elastin are some
Explanation:
