# Chapter 2 – The World Population (Distribution, Density and Growth) Questions and Answers: NCERT Solutions for Class 12 Geography: (Fundamentals of Human Geography)

Class 12 Geography: (Fundamentals of Human Geography) NCERT book solutions for Chapter 2 - The World Population (Distribution, Density and Growth) Questions and Answers.

## 3. Distinguish between: (i) Distinguish between Birth rate and Death rate:

 Birth Rate Death Rate It is the number of live births per thousand of population during a year for a particular region It is the number of deaths per thousand of population during a year for a particular region It is calculated using the following formula: CBR = Bi/P xlOOO Here, CBR = crude birth rate, Bi = Number of live births in a year, P = the estimated midyear population of that year. It is calculated using the following formula: CDR= D/P xlOOO Here, CDR = crude death rate, D = Number of deaths in a year, P = the estimated midyear population of that year If birth rate is more than death rate, it results in positive growth of population. If death rate is more than birth rate it results in negative growth of population.

## (ii) Distinguish between Push factors and pull factors of migration:

 Push factors Pull factors These factors are the ones which makes a place less attractive for human settlement. These factors are the ones which makes a place an attractive destination for settlement. These factors forces people to move out- hence face emigration. These factors force inflow of people – hence face immigration. Examples: Unemployment, poor living conditions, political turmoil, unpleasant climate, natural disasters, epidemics and socio-economic backwardness. Examples: Better job opportunities, better living conditions, peace and stability, security of life and property and pleasant climate.