Page 176 - SST Class 07
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9 9 9

                                       Human–Environment


                                       Interaction




             Our environment is everything our surroundings         mountains  in  the  west  to  the  Atlantic  Ocean  in
             comprise  of.  And  as  creatures  with  a  well-      the east.
             developed  brain,  we  humans  analyse  our  envi-     The  place  where  the  river  flows  into  another
             ronment and learn from it. We further implement        water body, such as a sea or an ocean, is called
             from what we have learnt to optimise our envi-         the  river’s  mouth.  The  Amazon  is  joined  by
             ronment. Human environment is the interaction          many  tributaries,  and  together  they  make  the
             between  human  society  and  natural  ecosystem.      huge area called the Amazon basin which covers
             Let us learn more about tropical and subtropical       parts of Brazil, Peru, Bolivia, Ecuador, Columbia,
             region.                                                and Venezuela.
             Human society or settlements were outcomes of          Climate
             the invention of agriculture. Rivers were a boon
                                                                    The Amazon Basin stretches along the equator so
             for agriculture and human settlements flourished
                                                                    its  climate  is  hot  and  wet  all  around  the  year;
             around them. In this chapter, we will learn about
                                                                    both days and nights are equally hot and humid,
             life in river basins.                                  making the skin feel sticky. It rains almost every

                            AMAZON BASIN                            day and the day temperatures are high with high
             The  tropical  region  near  the  equator,  between    humidity  while  night  temperatures  are  low  but
             10°N  and  10°S,  is  known  as  the  equatorial       the humidity remains high.
             region. This is the region where the Amazon river      Flora and Fauna
             flows  in  South  America,  starting  from  the
                                                                    Because  of  the  heavy  rains,  thick  forests  grow
                              N O R T H                                                        ALTITUDE SCALE
                                                                      TRINIDAD AND TOBAGO
                             A M E R I C A
                                                                                                (Height in metres)
                                                              S  Orinoco                             201 – 500
                                               Cauca     Meta  O                                     0 – 200
                                                         N
                                               Magdalena  L                              N O R T H
                            N O R T H                L  A    G U I A N A
                           P A C I F I C          Guaviare
                                                                    Branco               O C E A N
                            O C E A N                                    H I G H L A N D S  P A C I F I C
                                                               Negro         Amazon                      Equator
                                                    Putumayo A M A Z O N  B A S I N
                          Galapagos Is.         Tigre            Amazon
                               Gulf of Guayaquil           Jurua    Madeira  Tapajos  Xingu
                                             A N D E S
                                                          S  E  L  V  A  S                      Parnaiba
                                                           Purus                  A  S
                                           M O
                                                                               N  G  Araguaia
                                                                             I         Tocantins
                                                                            T
                                                                          A
                                                                        C
                                             Maranon U N T A I N S
                                                                                             Sao Francisco
                                                       L. Titicaca
                                                           BOLIVIA
                                                           PLATEAU
                                                The Amazon Basin (South America)
                                                       Social Science-7  176
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