Question

what are the two type of minning ?

Answer 1

Mining techniques can be divided into two common excavation types:surface mining and sub-surface (underground) mining. Today, surface mining is much more common, and produces, for example, 85% of minerals (excluding petroleum andnatural gas) in the United States, including 98% of metallic ores.

Answer 2

there are two types of mining
one is called open cast mining

second one is shaft mining by digging deep bores called shaft
hope it will help you