30. Match the following
Column I Column II
A. Beriberi 1. Vitamin A
B. Scurvy 2. Vitamin B
C. Rickets 3. Vitamin C
D. Night Blindness 4. Vitamin D
A B C D
(a) 3 2 1 4
(b) 2 1 3 4
(c) 2 3 4 1
(d) 2 3 1 4
31. Typhoid and cholera are typical examples of
A. Infectious diseases
B. Air-borne disease
C. Water-borne disease
D. None of these
32. Pyorrhea is a disease of the
A. Nose
B. Gums
C. Heart
D. Lungs
33. Lack of what causes diabetes.
A. Sugar
B. Insulin
C. Calcium
D. Vitamins