World Population Day is
Oral polio vaccine and hepatitis first dose is given to a child at
Which of the following viruses is not transferred through semen of an infected male?
“In the absence of environmental resistance the population grows in geometrical ratio when the food is given in arithmetical ratio''. This is
Statement $1$: One in every six person in the world in an Indian
Statement $2$: In India, there are more females than males
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