18. Methods of Mining
Depending on the mode of occurrence and the nature of the ore, mining is of two types:
surface and underground mining. The surface mining also known as open-cast mining is the easiest and the cheapest way of mining minerals that occur close to the surface.
Learn Social Science Contemporary India
Learn India and the Contemporary World-II
Learn Understanding Economics Development
Learn Health and Physical Education
-
Football ,
Tennis ,
Badminton ,
Cricket ,
Other-sports ,


No comments:
Post a Comment