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Asia—Climate,
                      7                     Natural Vegetation





                                            and Wildlife








                      n the previous chapter, we had studied            seasonal change that moves in the direction
                   Ithe physiography of Asia. In this chapter,          of the prevailing or strongest winds of a
                    we shall learn about the climatic zones,            region. Some call it a large-scale example of
                    natural  vegetation and wildlife of Asia. We        land breeze and sea breeze. Monsoons cause
                    understand that climate is an important             wet and dry seasons throughout much of the
                    part of our lives. Our way of life and various      tropics. Th  ey are most oft en associated with
                    economic activities such as agriculture,            the Indian Ocean.
                    industries and commerce are all aff ected by        Monsoons always blow from cooler to
                    climate.                                            warmer regions. Th  e summer monsoon and

                                                                        the winter monsoon determine the climate
                    Climate                                             for most of India and South-East Asia.

                    Asia experiences a variation in climatic
                    conditions across its regions on account
                    of diff erent oceans, mountains, deserts as
                    well as the varied wind patterns that can be
                    found there. Some areas experience climatic
                    extremities while some are pleasantly
                    moderate. Areas located away from oceans
                    and seas experience extreme conditions and
                    continental climates whereas places located on
                    the coasts experience maritime and moderate
                    climates. Th  e mountain ranges may also stand             People riding on motorbikes during heavy
                                                                                  monsoon rains in Saigon, Vietnam
                    in the way of the rain-bearing clouds from the
                    south and prevent the cold winds from the           Summer Monsoon
                    north to move in a southwardly direction.
                                                                        In the course of the Earth’s revolution around
                                                                        the sun, the sun’s rays start falling directly
                    Monsoon                                             over the Northern Hemisphere from March

                    Th  e monsoons play a very prominent role           to June, stretching up to September. By June,
                    in Asia. A monsoon is a wind system that            when the sun is directly over the Tropic of
                    reverses its direction every six months. Th ey      Cancer, most parts of Asia experience an
                    usually fl ow from the sea to land in the summer    average temperature of 32°C, except the
                    and from the land to sea in the winter. It is a     regions beyond the Arctic Circle. Hence, the

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