It most commonly forms in clear, warm, shallow marine waters. It is usually an organic sedimentary rock that forms from the accumulation of shell, coral, algal, and fecal debris. It can also be a chemical sedimentary rock formed by the precipitation of calcium carbonate from lake or ocean water
It would be Britain and Russia
Overly Populated. It is the 7th largest country and 2 nd most populated country.
Explanation:
You can try to think of it as a picture in your head.
