Question

use of science and technology for refining of natural resources like iron ore
​

Answer 1

Answer:

Open-pit mining, also known as opencast mining, is a surface mining technique that extracts minerals from an open pit in the ground.

Answer 2

Refining of iron ore by application of science and technology are as follows:

• Use of special technique called surface mining is used to refine natural resources like iron ore.

• This technique is also called open-pit mining as the process of extracting different minerals and rock takes place in an open-air pit which is also known as burrows.
• This method of extraction is used when the deposits of minerals are found near the surface.
• Underground minerals that are difficult to mine due to hard rock are retrieved using the technique of underground mining.