Question

Explain any four factors that affect the distribution and density of population

Answer 1

Any four factors that affect the distribution and density of population are :

》transport system

》 Food and other facilities

》 Presence of industries in that area

》 Presence of health, educational and other institutions.

Answer 2

The density of a population in a given habitat during a given period, fluctuates due to changes in four basic processes, two of which (natality and immigration) contribute to an increase in population density and two (mortality and emigration) to a decrease.

(i) Natality refers to the number of births during a given period in the population that are added to the initial density.

(ii) Mortality is the number of deaths in the population during a given period.

(iii) Immigration is the number of individuals of the same species that have come into the habitat from elsewhere during the time period under consideration.

(iv) Emigration is the number of individuals of the population who left the habitat and gone elsewhere during the time period under consideration

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