EARTH SCIENCE
MINERAL PHYSICS
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
It is the most dangerous method of mining.
|
|
|
Surface mining is expensive type of mining.
|
|
|
Surface mining can be done through creating a tunnel.
|
|
|
It is used to extract ore minerals near the surface of the earth.
|
Detailed explanation-1: -The mining which is used to extract the minerals that are found closer to the earth’s surface if surface mining. Surface mining has different types such as strip mining and open pit mining.
Detailed explanation-2: -All methods of surface mining will remove the waste material, or overburden, above the desired resource. Surface mining is often preferred to sub-surface (underground mining) by mining companies for several reasons. It is less expensive, there are fewer complications in terms of electricity and water and it is safer.
Detailed explanation-3: -Strip mining is a practical type of mining when the ore body that is to be extracted is near the surface. Open-pit mining is the process of extracting rock or minerals from the earth through their removal from an open pit or borrow.