Population and Attributes
- The gender ratio refers to the total number of men and women per 1000 individuals.
- The birth rate refers to the total number of individuals born in a certain period of time.
- Death rate refers to the total number of deaths in a certain period of time.
- A plot showing age distribution is known as an age pyramid.
Population Growth – CBSE Class 12
Population Growth: Population growth refers to the increase in the number of people in a given area in a particular period of time. It is the main cause of this world because the population of human beings is not a static factor. Population growth depends on various factors such as weather, food availability, and predation pressure. The density of population changes during a given period due to changes in four basic processes two of which natality and immigration contribute to an increase in population and the other two mortality and emigration contribute to the decrease in population.