The two important contributory causes of diseases are ................ and ........... make up.

The right answer is Under nourishment and Genetic

The diseases are caused by lack of nutrients or passed on from heredity from parents to off springs. The diseases caused due to lack of nutrition are Scurvy, Rickets. Some genetic disorders are inherited from the parents, while other genetic diseases are caused by acquired changes or mutations in a pre-existing gene or group of genes. The genetically acquired disease are Down syndrome and Cystic fibrosis.