The World Population – Distribution, Density and Growth

The World Population
Distribution, Density and growth

  • How much world population was recorded at the beginning of the 21st century?
    Ans: Over 6 billion population.
  • Who stated that “Asia has many places where people are few and few place where people are very many”?
    Ans: George B. Cressey.
  • How many percentage of the world population lives in about 10 % of its land area?
    Ans: 90%.
  • How many percentage of the world populations are living in the 10 most populous countries?
    Ans: 60%.
  • What is population density?
    Ans: The number of total population on a particular unit of land is called population density. For example – 382/square kilometer is the density of population in India (Census – 2011).
  • What is population growth?
    Ans: Change of population in s particular area between two points of time is known as growth of population.
  • What is natural growth of population?

Ans: This is the population increased by difference between births and deaths in a particular region between two points of time. 

  • What is natural growth of population?
    Ans: Natural growth of population means the population increased by difference between births and deaths in a particular region between two points of time.
  • Natural growth=Births – Deaths. But, actual growth of population is calculated as follows:
  • Births – Deaths + In migration – Out migration.
  • What is positive growth of population?
    Ans: When the birth rate is more than the death rate between two points of time or when the population increased due to permanent migration to a region is called positive growth of population.
  • What is negative growth of population?
    Ans: When the birth rate is less than the death rate between two points of time or when the population decreased due to permanent migration from a region is called negative growth of population.
  • Which Continent has the highest growth rate of population.
    Ans. Africa.
  • Name a mineral belt in Africa Which has Dene’s population?

    Ans. Katanga-Zambia Copper belt.

  • Name three components of population change.
    Ans.Birth rate’ Death rate and Migration.
  • Who are emigrants?
    Ans.Who moved out of place.
  • Which country in the world has the highest growth rate of population?
    Ans.Liberia.
  • Why is population growth high in second stage of Demographic Transition?
    Ans. High birth rate & low  death rate.
  • What is the trend of population growth in third stage of Demographic Transition?
    Ans. Stabl, Zeroor even negative.
  • Why life expectancy reduces in some developing countries of Africa?
    Ans. Due to deadly disease like HIV/AIDS.
  • Demographic Transition?
    Ans. This theory explains 3 staged model of demographic transition:
    Stage (i) High birth rate, high death rate, low growth: Example Bangladesh.
    Stage(ii) Initially high Barth rate, low death rate, high growth rate-example India.
    Stage(iii) Low birth rate,low death rate, stable or low growth rate -example Japan.
  • Classify the world into various region on the basis of population density

    Ans.1 Areas of high Density:
    (I) Monsoon Asia,South and South East Asia.
    (Ii)Europe – river valley’s,coastal plains
    (iii)Eastern coastal region of North America.
    2: Areas of Medium Density
    (i)Asia
    (ii)Europe
    (iii)U.S.A, Australia.
    (iv)Africa, South America.

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