Question

How is human population checked at present?

Answer 1

Population census:

1. The human population is checked at present by the Population census.
2. Population census can be defined as the systematic collection, compilation, analysis, and publishing of information regarding a population residing in a particular region during a specific time period.
3. In most countries, the census is conducted at least once in ten tears.
4. Population size is calculated using the following formula:

P(c) = p ( i ) + ( b + i ) – ( d + e )

Where,

1. P(c) =current population
2. p(i) = initial population
3. b = number of births
4. i = number of immigrants
5. d = number of death
6. e = number of emigrants