Mucus and Cilia help filter dust and dirty. Cilia are small, hair like structures in the nasal passage and trachea. Mucus is also found in the nasal passage and trachea.
Food which cannot be touched with bare hands is called contaminated food - A. There is in essence no real reason why one wouldn' be allowed to touch ready-to-eat food or convenient food or heart and serve food for that matter.
Athletes can end up anemic.... neglect their
a. protein
