Explanation

World Red Cross Day is annually celebrated on 8 May.

World Red Cross Day is celebrated as the birthday anniversary of Henri Dunant, founder of International Committee of the Red Cross.

Henri Dunant was born on May 8, 1828.

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Explanation

World Standards Day (or International Standards Day) is observed on 14th October annually to spread awareness about the importance of standardization to the global economy. 

Theme 2024: Shared Vision for a Better World

Explanation

Every Year, World Oceans Day is celebrated on June 8.

Theme 2021: ‘The Ocean: Life and Livelihoods

Theme 2022: Revitalisation: Collective Action for the Ocean

Theme 2023: Planet Ocean: The Tides are Changing 

Theme 2024: Awaken New Depth

Explanation

Little Boy type of bomb, which was dropped on the Japanese city of Hiroshima age on 2023: 78 years

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The Little Boy type of bomb, was dropped on the Japanese city of Hiroshima on 6 August 1945

Specifications

Mass 9,700 pounds (4,400 kg)

Length 10 feet (3.0 m)

Diameter 28 inches (71 cm)

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.The Fat Man was dropped on Nagasaki, Japan, on August 9, 1945, at 11:01 AM.

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Explanation

Chernobyl Nuclear Power Plant situated: Ukraine

Chernobyl disaster happened: 26 April 1986 (nuclear energy accident)

In 2016, United Nations declared 26 April as International Chernobyl Disaster Remembrance Day.

Explanation

A year may be a leap year if it is evenly divisible by 4.

The Solar year is 365.2422 days long, a length which no calendar year can accommodate.

Generally, a leap year happens every four years

The next leap day will be on Thursday, February 29, 2024.

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Explanation

The day recognizes the contributions of Louis Braille in helping blind and visually impaired people to read and write.

The first World Braille Day was celebrated on January 4, 2019

5th edition of World Braille Day was celebrated on 4 January, 2023.

Explanation

World Mountains Day is celebrated on 11 December every year.

Theme 2020: Protecting Mountain Biodiversity

Theme 2021: Sustainable Mountain Tourism

Theme 2022: Women Move Mountains

Explanation

World Food Day is observed on 16 October annually.

Theme 2020: Grow, Nourish, Sustain Together: Our Actions Are Our Future

Theme 2021: Our actions are our future

Theme 2022: Leave NO ONE behind

Note: Food & Agricultural Organization (FAO) was established on 16 October 1945.

Explanation

• International Day of Clean Air for blue skies, was designated 7 September by the United Nations General Assembly in 2019.

• The United Nations General Assembly designated 7 September as the International Day of Clean Air for Blue Skies with the aim of raising awareness and promoting actions to improve air quality.
• Theme 2022: The Air We Share