Write in 200 words:

Describe the types of mining.

Mining is the extraction of minerals and other materials from the interior of the earth.

• It has immense importance in today’s world as the household or industries depend on the minerals available on the planet.

• There are various types of mining: Surface mining (for minerals found close to the surface of the earth). It can be further divided into three types: open cast, strip, alluvial.

• Open cast: Digging of the materials found at the surface of the earth.

• Strip: Involves removing of long strips of soil and rock and other weathered material.

• Alluvial: Extraction of minerals by dredging from the beds of rivers. (Tin and gold).

• Quarrying: It is another type of mining used for extracting building materials like Limestone.

• Underground (Sub surface) mining: Ores are extracted from greater depths beneath the surface of the earth. This kind of mining is expensive as well as risky. Ex. Coal

• Drilling: It is the extraction of oil and petroleum.

• There are other types of mining like contour mining, highwall mining, etc.

• There are some side effects of mining like soil erosion, water erosion, and air pollution. So mining areas after work must not be left abandoned.