Page 169 - SST Class 08
P. 169

Areas of Sparse Density                                                                          India
                                                                     AFGHANISTAN                       Population Density
            These areas do not present conditions conducive
            to settlement, especially climate, so they are not
            favoured for human habitation. The geographical
            factors do not allow to develop resources to meet           PAKISTAN    1
            human needs; these areas include very cold                               1             CHINA
                                                                                              NEPAL  Tibet
            places (Antarctica and tundra regions) or very hot                            2               BHUTAN
            places like deserts (Sahara and Kalahari in Africa;                                     2           3
            Arabian Desert, Gobi Desert and Thar in Asia; the                                             BANGLA
                                                                                                           DESH
                                                                             3                     3
            Great Australian Desert; Patagonia and Atacama in                                           2
            South    America;    the   Mexican    Desert    and                                                      MYANMAR
            California-Colorado in North America). Similarly,                     3
            rugged mountainous regions too present very
                                                                     A R A B I A N  S E A            B AY  O F  B E N G A L
            difficult living conditions, as higher reaches of the                       3
            Himalayas, Andes etc.                                                 3             NUMBER OF PERSONS
                                                                                                  PER Sq km (2001)
            Also,     the    thickly                                                                 above 1000
                                                                                                     500-1000
            forested regions of the                                      LAKS                        250-500
                                                                        (
                                                                                       3                       (IND
            Amazon      basin,   the                                     IA)  HADWE  2               100-250   IA)  ANDAMAN AND NICOBAR ISLANDS
                                                                        IND
                                                                                                     below 100
            Zaire or Congo basin                                          EP                     (National Average 325)
            are also low populated                                                         SRI
                                                                                          LANKA
            because     the    forest                                             I N D I A N   O C E A N
            resources   cannot    be      Scientists in Antarctica                 Population density of India
            optimally exploited.
                                                                    Activity
                    Just Think!                                      On an outline map of India, show the distribution
                                                                     of population.
            What problems are faced by the people who live in
            deserts or the hilly areas?                                    POPULATION GROWTH IN THE WORLD

                                                                    Population can increase or decrease in a region or
                      POPULATION DENSITY IN INDIA
                                                                    country due to many factors, such as migration,
            In India, average population density is 328             break out of an epidemic, occurrence of a natural
            persons per square kilometre as per the Census of       calamity, such as an earthquake. However, the
            India, 2011. As the population is continuously          major factor for population growth is difference in
            increasing, this density continues to increase year     the birth rate and death rate.
            to year.
                                                                    At present, the population in the world is more
            In India, there are some regions which are more         than six billion. It is estimated that the world
            densely populated regions as compared to others         population in 8000 BC was about 8 million,
            because of favourable geographical and socio-           which reached to the mark of 750 million (75
            economic factors. Population density varies from        crore) in the next 10,000 years. This growth was
            region to region. The most sparsely populated           marginal as both birth rate and death rate were
            states in India are Arunachal Pradesh and               nominal. The difference between birth rate and
            Mizoram with a density of 13 and 43 persons per         death rate is called natural growth rate .
            square kilometres respectively. On the other hand,      Changes in the size of the population depend
            Delhi and Chandigarh are the most densely
                                                                    mainly on the birth rate and death rate. The
            populated places with a density of 9300 and 7900        number of live births per thousand people in a
            persons per square kilometres respectively.
                                                                    year is called birth rate   while the number of
                                                                                               Human Resources
                                                                                                                 169
   164   165   166   167   168   169   170   171   172   173   174