Identify the element formed when carbon-14 (14c) undergoes radioactive decay. [1]

After studying the information you have given in the photograph, the element that will be formed when  carbon-14 (14C) undergoes radioactive decay is nitrogen-14. You can also write it as just nitrogen. Either way is acceptable. 

B. to study the spatial patterning of forests and forests fires and plan for better use of fire fighting resources in the u.s.