Question

Deficiency diseases are those that occur in your body because of
(i) less water
(ii) absence of a nutrients
(iii) absence of exercise
(iv) presence of disease germs

Answer 1

because of presence of germs

Answer 2

Answer:

Deficiency diseases occur in the body of a person due to the absence of one or more particular nutrients.

Explanation:

Deficiency diseases occur if the person is not having proper nutrition for days. It is the case where both plants and animals suffer. Night blindness, rickets, osteomalacia, pernicious anemia, etc all are deficiency diseases of different diseases. These diseases are treated with medications referring to that particular property of food which is lacking in the victims' diet.