What is the process in which deep wells are bored to take out petroleum? 1) open cast minning 2)quarrying 3)drilling 4)shaft minning
Answers
Minerals can be extracted by different processes, which are as follows:
Mining: The process of taking out minerals buried under the rocks is called mining. There are two main methods of mining, viz. open-cast mining and shaft mining.
Open Cast Mining: When minerals are taken out by removing the surface layer, the process is called open-cast mining. Minerals which lie at shallow depths are extracted by this process.
Shaft Mining: When deep bores (called shafts) are made to reach the mineral deposits at great depth, the process is called shaft mining.
Drilling: When deep wells are bored to take out the mineral, the process is called drilling. Petroleum and natural gas are extracted by this method.
Quarrying: When minerals are simply dug out from near the surface, the process is called quarrying.
Answer:
its drilling
Explanation: