“In the absence of environmental resistance the population grows in geometrical ratio when the food is given in arithmetical ratio''. This is
Kenze theory of population
Malthus theory of human population
Kenze theory modified by malthus
None of the above
Housing problems, health problems, pollution problems etc. are created by the
In vivo fertilisation involves the fertilisation that takes place
Per year growth in India's population according to $1991$ census is
The population growth of India from $1981$ to $1991$ is