Causes of vitamin B2 deficiency. The main causes of vitamin B2 deficiency is an unbalanced diet that doesnât contain enough foods with riboflavin. Alcohol impairs the utilization of riboflavin in the body. Therefore, alcoholics are at a higher chance of suffering from vitamin B2 deficiency. Anorexia, a poor eating habit.
LINK / CITE ADD TO WORD LIST. noun. The definition of a subscription is an agreement you make in advance to receive something for a specific period of time. When you make an arrangement to have a magazine delivered every month, this is an example of a subscription.INK / CITE ADD TO WORD LIST. noun. The definition of a subscription is an agreement you make in advance to receive something for a specific period of time. When you make an arrangement to have a magazine delivered every month, this is an example of a subscription.
Definition of CONTRIBUTION. 1. : a payment (as a levy or tax) imposed by military, civil, or ecclesiastical authorities usually for a special or extraordinary purpose.2. : the act of contributing; also: the thing contributed.â conÂ·tribÂ·uÂ·tive \kÉn-Ëtri-byÉ-tiv\ adjective.xamples of CONTRIBUTION. 1  They thanked him for his contribution of time and money. 2  He made an important contribution to the debate. 3  As mayor, he made many positive contributions to the growth of the city.