HISTORY AND THEORY....CAVE

A cave is a natural underground void large enough for an adult human to enter. however, in popular usage, the term includes smaller spaces like cliff cavities, rock shelters and sea caves. for types and formation caves are formed by geologic processes...mm....cave have two part...firstly is primary caves...this about some caves are formed at the same time as the surrounding rock. Kazumura Cave near Hilo is the longest and deepest lava tube of the world and also the eighth longest cave of the United States. Blister caves are also formed through volcanic activity. secondly is secondary caves and about formed inside the rock after the rock itself has formed by processes such as solution and erosion. Also known as littoral caves, they form from wave action along zones of weakness in sea cliffs......for this we see archaeological and social importance in caves...huhuhu......Throughout history, primitive peoples have made use of caves for shelter, burial, or as religious sites. Since items placed in caves are protected from the climate and scavanging animals, this means caves are an archaeological treasure house for learning about these people. In Germany some experts found signs of cannibalism in the caves at the Hönne. Caves are also important for geological research because they can reveal details of past climatic conditions in speleothems and sediment layers. Caves are frequently used today as sites for recreation. Caving, for example, is the popular sport of cave exploration. For the less adventurous, a number of the world's prettier and more accessible caves have been converted into show caves, where artificial lighting, floors, and other aids allow the casual visitor to experience the cave with minimal inconvenience. Caves have also been used for BASE jumping and cave diving.....before I forget, through out history,primitive peoples have made use of caves for shelter,burial, or as religious sites.....example since caves in Malaysia we can take to experiment exspecially for student is gua nia,gua puteri,gua harimau,gua dayak......