Coral limestone are examples of rocks whose formation is not explained by the rock cycle. Corals are tiny marine organisms that absorb carbon dioxide dissolved in sea water and use this to secrete hard skeletons of calcium carbonate. These organisms can build massive reef structures over the course of thousands of years.
There are many people in urban areas. If there are floods, it could kill a lot of people. Also, floods sometimes damage buildings. If the buildings collapse, it would cause a big problem.
Answer:
Austria, Belgium, Cyprus, Estonia, Finland, France, Germany, Greece, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Portugal, Slovakia, Slovenia and Spain
Explanation:
Population density is the number of people per unit of area. Usually measured by how many people are in a square mile or square kilometer.
