Search results

I see.:) Thank you very much~

The question is: define the terms mineral and ore with reference to economic and non-economic deposits of natural resources. I'm not sure, can I just choose one to say??

I'm going to do a task of mineral and ore. Teacher required me to give a reference of econimic and non-economic deposit of natural resources, but I have no idea where can I find the reference. Please provide a website to me. Thank you very much~!~!~!:)