Sometimes it's a complex system of technical terms, such as the specialized language used in medicine or law. In other cases, it's a less-formal system of abbreviations and acronyms. For example, job advertisements frequently use acronyms such as DOE or EOE to streamline their postings. Understanding the meaning of these and other terms can simplify the job-hunting process.
Limestone hills, Cotswolds. The Cotswold hills are made of Oolitic limestone, a type of limestone made up of small round grains. These formed in shallow, warm waters like those found today around Florida and parts of the Caribbean Sea, where calcium carbonate is deposited from sea water due to evaporation.
Limestone. This area is known as the Burren about and is made up of huge slabs of limestone which were formed in the warm shallow seas of the Carboniferous ocean 340 million years ago. On the floor of this sea, shells, skeletons of plants and animals and coral were deposited and compressed and over millions of years formed limestone.