Which of the following U. S. ecoregions has experienced the greatest extent of deforestation?

These are resources that cannot be renewed after used. examples include coal petrolium and gas

The peak above is part of the  sierra madre occidentals ,  a chain of volcanic mountains that runs through the middle of central america. 

The zhou dynasty (1046-256 bce) was the longest-lasting of china's dynasties. it followed the shang dynasty (c. 1600-1046 bce) and it finished when the army of the state of qin captured the city of chengzhou in 256 bce.

Physical systems is the answer