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                     UNIT



                  What is a                                                                            ATR3-1-01
                  Desert?                       What is a Desert?







                                                   A desert is the driest land in the world. The

                                                land is mostly sand and the air is very dry. In the

                                                                        1
                                                desert, only a few  centimeters of rain fall each
                                                year. And most of it falls on just a few days.


                                                There can be months with no rain at all.


                                                   The desert is a harsh land for plants. The


                                                soil does not have much water. It doesn’t have

                                                                      2
                                                enough nutrients , either. A cactus is one of the
                                                                             3
                                                plants that can survive  in the desert. It has long
                                                                                       4
                                                thin roots. And they can reach  water deep inside
                                                the ground.





















                     ATR3-1-V01             cactus wren
                                                                                        jackrabbit





                    Vocabulary

                    1  a few : three or four or a small number of persons or things
                    2  nutrient : a substance that helps plants and animals to grow
                    3  survive : to stay alive
              12    4  reach : to arrive somewhere
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