World Hydrography Day is observed every year on 21 June. What is the theme for World Hydrography Day 2021? 

World Hydrography Day is observed every year on 21 June. What is the theme for World Hydrography Day 2021?  Correct Answer 'One hundred years of international cooperation in hydrography'

The correct answer is  'One hundred years of international cooperation in hydrography'.

  • The World Hydrography Day is observed every year on 21 June.
  • The theme for World Hydrography Day 2021 is 'One hundred years of international cooperation in hydrography.'
  • The day was approved and implemented by the International Hydrographic Organization (IHO).
  • The day is observed to increase awareness about the protection of safe navigation for sailors.

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