Which of the following drug is progesterone antagonist and acts as an abortion drug?
First dose of $BCG$ vaccine is given at the time of
$A$ : Every sixth person in the world is an Indian.
$R $: Life expectancy depends upon average life span
Which of the following can be taken as the most convincing factor for indicating the rapid increase in population growth of a country?
Generally there was population growth rate increase in India, but in which of the following year there was decrease in population growth rate