Explanation

• World Hydrography Day is observed on June 21 every year to raise awareness about hydrography and the essential role that it plays in improved knowledge of the seas and oceans.
• Theme 2021: One hundred years of international cooperation in hydrography
• Theme 2022: Hydrography - contributing to the United Nations Ocean Decade

Explanation

• World Hydrography Day is observed on June 21 every year to raise awareness about hydrography and the essential role that it plays in improved knowledge of the seas and oceans.
• Theme 2021: One hundred years of international cooperation in hydrography
• Theme 2022: Hydrography - contributing to the United Nations Ocean Decade

Explanation

• Every every Food and Agricultural Organization (FAO) celebrated World Milk Day on 1 June.
• Theme 2021: Sustainability In The Dairy Sector with messages on nutrition 
• Theme 2022: Theme 2022: Dairy Net Zero
• Theme 2023: Enjoy Dairy
• Theme 2024: celebrating the vital role dairy plays in delivering quality nutrition to nourish the world

Explanation

•  'World Water Week 2022' celebrated from  23 August to 1 September.
• Theme 2022: Seeing the Unseen: The Value of Water 

Explanation

World Photography Day is an annual, worldwide celebration on 19th August of the art, craft, science and history of photography.

Explanation

World Mosquito Day, observed annually on 20 August, is a commemoration of British doctor Sir Ronald Ross's discovery in 1897 that female anopheline mosquitoes transmit malaria between humans. 

Explanation

The World Rose Day, which is celebrated on September 22 every year, is dedicated to cancer patients all across the globe.

Explanation

• World Aspergillosis Day is observed on 1st February every year.
• Aspergillosis is an infection.
• Aspergillosis Day was first observed in 2018.
• 1 February 2022 marks the 5th Aspergillosis day.

Explanation

• World Aspergillosis Day is observed on 1st February every year.
• Aspergillosis is an infection.
• Aspergillosis Day was first observed in 2018.
• 1 February 2022 marks the 5th Aspergillosis day.

Explanation

International Internet Day has been annually celebrated on 29th October since 2005 to mark the anniversary of the first internet transmission on October 29, 1969.