"Non-Renewable Natural Resources"

 Post your answers to the following questions: 1) Which non-renewable natural resources are most at risk of depletion?   2) Choosing your selected developing country (from the Week 4 Assignment), discuss which natural resources might be at risk of depletion and why? 3) Please provide a reference source.  

Selected Countries: Central African Republic or Ethiopia, choose one of the selected countries for this post.