I don't quite know if this helps but in the early 2000's the majority of coal was produced in the western parts of the Mississippi 
 
        
             
        
        
        
<span>Biological scientists are research scientists who examine how living organisms relate to the environment. They can specialize in any number of plant, animal or environmental studies. Biological scientists most often have earned a master's or doctoral degree in their specialization; such degrees offer the opportunity to develop research while finishing their education. Some low-level positions related to biological science are available to those holding baccalaureate degrees.</span>