Deficiency of __________ causes loss of appetite and poor growth?

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The science which deals with study of manners and customs of people is ?

A. Ethnology B. Morphology C. Ethics D. Genetics E. None of these...

Quartz crystal in quartz watches work on the principle called?

A. Photoelectric effect B. Stark effect C. Thermionic effect D. Piezo-electric effect E. None of these...

Red blood corpuscles are formed in the____________?

A. Liver B. Bone marrow C. Kidneys D. Heart...

Tarsal bone is in?

A Hand B Arm C Leg D Foot ...

Diamond is harder than Graphite because of___________?

A. Difference in crystalline Structure B. Tetrahedral structure of diamond C. Difference in layer of atoms D. None of these...