Question

Distribution of population per unit area
certain number of population ideal for sustainable fable resource
Official enumeration of population once in a decade
d People who move out of a country
People who move to live in another country
Number of females per 1000 males​

Answer 1

Explanation:

Sex ratio is the right answer

Answer 2

Answer: Official enumeration of population carried out for census is done for every 10 years. The process of  census began in 1872, however first complete census was taken in the year 1881.

The responsibility of conducting the Census rests with the Office of the Registrar General and Census Commissioner, India under Ministry of Home Affairs in India.

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