‘Essay on population’ was published by
Malthus
Lamarck
Darwin
Mendel
(a) Thomas R.Malthus ($1778$ $A.D.$).
What is the function of copper ions in copper releasing $IUDs$?
Statement $1$: One in every six person in the world in an Indian
Statement $2$: In India, there are more females than males
Number of females is more than males in
Highest and lowest population in India is in
Family planning program was initiated in
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