Why are developed countries reducing mining? Or Why are developed nations moving back in context to mining processing and refining work? Or Developing nations are giving more importance to mining, processing and refining works. Why?

Why are developed countries reducing mining? Or Why are developed na

1.	Why are developed countries reducing mining? Or Why are developed nations moving back in context to mining processing and refining work? Or Developing nations are giving more importance to mining, processing and refining works. Why?
Answer» Developed countries are reducing mining processing and refining activities because these require higher number of labour.