Deficiency of vitamin C causes

1. Night blindness
2. Scurvy
3. Anaemia
4. Polio

Distinguish between Rickets and Smallpox on the basis of the characteristic symptoms.

Distinguish between Metabolic diseases and Mental illness on the basis of the one example of each.

Which of the following is a specific symptom of the disease long dash scurvy ?

1. Skin inflammation
2. Bleeding gums
3. Drying of cornea
4. Bones turning soft