A. Write down the disease caused by its deficiency Vitamin A _______________________________

Vitamin A deficiency can lead to several health issues, the most notable of which is xerophthalmia. This condition is characterized by dryness of the conjunctiva and cornea of the eye, which can lead to severe visual impairment and even blindness if left untreated. Vitamin A plays a crucial role in maintaining healthy vision, particularly in low-light conditions, as it is a component of retinal pigments necessary for phototransduction. Other potential health problems associated with Vitamin A deficiency include increased susceptibility to infections, skin issues, and impaired immune function. Hence, maintaining adequate Vitamin A levels is essential for overall health and proper physiological functioning.