How did calcium compounds affect the world?

When most people hear the word 'calcium' they think of what is in milk and other dairy products. Most people think that you need calcium in you body, so you have to drink milk and dairy products. Well, whoever seriously thinks like this should get some extra research done, because calcium is used almost every day in our lives. Not only medically, but also in the world around us. A calcium compound is basically when calcium has been combined with two or more elements. For example calcium hydroxide ( Ca(OH)2 )This very reactive grayish white metal affected the world in both negative and…