The earth’s crust is broken into a number of huge parts. They are called
  • lithospheric plates
  • metamorphic plates
  • sedimentary plates
  • none of these
Which one of the following forces originates in the interior of the earth?
  • Exogenic forces
  • Endogenic forces
  • Both (a) and (b)
  • None of these
Sudden movements in the earth are called
  • earthquakes
  • building mountains
  • focus
  • none of these
The place on the surface above the focus is known as
  • epicentre
  • focus
  • forces
  • lithosphere
What is the name of the instrument used for measuring earthquake?
  • Thermometer
  • Seismograph
  • Weighing machine
  • All of these
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