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SAI INTERNATIONAL SCHOOL
              SUBJECT – GEOGRAPHY                                                                  STD VII
              TOPIC- LESSON -3  OUR CHANGING EARTH
              SUB TOPIC- EARTHQUAKE , Case Study
                                               HOME ASSIGNMENT
              OBJECTIVE
              Where is the focus with respect to the epicenter:
                 a) directly below the epicenter
                 b) directly above the epicenter
                 c) in the P wave shadow zone
                 d) in the S wave shadow zone


              Which is a types of earthquake waves:
              a) P wave, S wave, L wave
              b) P wave, M wave, L wave
              c)P wave, Q wave, R wave
              d)wave, S wave, T wave


              A massive earthquake measuring ______    on Richter scale hit Bhuj Town
                 a) 2.9
                 b) 3.9
                 c) 6.9
                 d) 4.6

              The point where movement occurred which triggered the earthquake is the _______ .
                 a) Dip
                 b) Epicenter
                 c) Focus
                 d) Strike

              The safest point during an earthquake is
              a) bed
              b) under table
              c )under the window
              d )elevator












              What causes the up-and-down wiggles on the seismogram shown above?
                 a) variations in air pressure
                 b) ground vibrations
                 c) tsunami waves

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