Natural disasters

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Across
  1. 2. are measured on richer scales
  2. 4. as high as 15 meters have to be affected by drought
  3. 5. is an opening on the earth's surface,which allows hot,molten rocks,ashes and gases to escape from below the surface
Down
  1. 1. is the only active volcano in the Indian subcontinent
  2. 3. is caused by a cyclone