Final answer:
The statement that is not true about Block Caving Mining is "there is a lot of flexibility to adapt to geological surprises." This method requires extensive upfront planning and does not easily allow for changes once underway.
Step-by-step explanation:
Which of the following is not true about Block Caving Mining?
The option that is not true about Block Caving Mining is "d) there is a lot of flexibility to adapt to geological surprises." Block caving, as a large-scale mining method, is used where mineral deposits are at great depth or where the orebody is extensive. It is planned and implemented based on comprehensive geological and engineering studies. Once the process is initiated, it is difficult to adapt quickly to geological surprises that were not anticipated in the initial planning stages.
The initial costs and risks are very high due to the extensive planning and infrastructure that must be established before the actual mining can begin. Operations of a developed mine using this method tend to be inexpensive because the extraction process is automated and the ore, in a sense, "mines itself" once fractures are initiated and gravity does the work. The process also requires less manpower once it is operational, contributing to reduced operating costs.