Before starting to write, we checked and summarized materials which strongly support athletes as shown tables on the website*. Then, we found that iron is one of the key elements in sports. Iron is one of the more abundant elements in the Earth’s crust (4th; 5 % of the crust). On the athletic fi eld, athletes wear spikes in their shoes to run and turn with surety. These small spikes a... https://www.lulabetjuso.com