Natural Resources-Mineral Resources-Use, exploitation, Environmental effects of extracting by mining

[@senthilkumarsadhasivam6984]

Good information, simple to understand, excellent work

[@sadhnachauhan7518]

Agr aise hi pdhna ho to hum book se na pdhle sir ji?

[@user-adesh_ingle_creation]

Marathi bolale saram lagte ka

[@saysomethingabout.....7791]

Malay sir

[@chanduthalapaka]

Hlo