A. Sound waves
B. Time
C. Color contrast
D. Water waves

A. Copernicus
B. Newton
C. Galileo
D. Kepler

A. Trichomonas
B. Giardia
C. Leishmania
D. Trypanosoma

A. Lack of green vegetables in diet
B. Use of milled rice
C. Deficiency of calcium in bones
D. Poor use of citrus fruits

A. Thiamine
B. Riboflavin
C. Niacin
D. Retinol

A. Riboflavin
B. Thiamine
C. Ascorbic Acid
D. Niacin

A. Albinism
B. Cirrhosis
C. Rabies
D. Pellagra

A. Riboflavin
B. Retinol
C. Thiamine
D. Niacin

A. Viqar-ul-Mulk
B. Maulana Zafar Ali Khan
C. Raja Sahib of Muhammadabad
D. Mian Muhammad  Shafi

A. Sandfly
B. Dragonfly
C. Mosquito
D. Housefly