Calcium is an important element required for muscle contraction and bone integrity.
The answer is c. he could develop fatigue or depression
While the regulations vary from country to country, in the U.S., organic crops must be grown without the use of synthetic pesticides, bioengineered genes (GMOs), petroleum-based fertilizers, and sewage sludge-based fertilizers. ... Livestock are given growth hormones for faster growth, as well as non-organic, GMO feed.
