Explanation

Explanation

In the Northern Hemisphere, the March equinox is called the vernal or spring equinox.

On the Gregorian calendar, the northward equinox can occur as early as 19 March or as late as 21 March at 0° longitude.

while 

The September equinox is called the autumnal or fall equinox on 23 September.

Explanation

A solar year is approximately 365.25 days, which accounts for Earth's full orbit around the sun.

The extra ¼ day each year is why we have a leap year every 4 years.

The solar year 365 days 5 hours 48 minutes 46 seconds, also called tropical year, or year of the seasons.

Explanation

A lunar year (based on 12 lunar months) is approximately 354 days, while a solar year is about 365 days.

Therefore, the lunar year is shorter by about 11 days than the solar year.

Explanation

A leap year occurs every 4 years if the year is divisible by 4.

However, years divisible by 100 are not leap years unless they are also divisible by 400.

• 1896: Divisible by 4 → Leap year
• 1902: Not divisible by 4 → Not a leap year
• 1904: Divisible by 4 → Leap year
• 1908: Divisible by 4 → Leap year

Explanation

The year 2024 is a 'leap year'.

Its meaning the month of February will have 29 days instead of 28.

Total number of days will be 366 instead of 365.

This was also the case in 2024, and 2028 will again be a leap year.

Explanation

Bastille Day is the common name given in English-speaking countries to the national day of France

Bastille Day is celebrated on 14 July each year.

In French, it is formally called the Fête nationale française; legally it is known as le 14 juillet

Celebrations: Military parades, fireworks, concerts, balls

Explanation

International Day of Innocent Children Victims of Aggression is observed on 4 June annually.

The objective of the day is to acknowledge the pain of the children across the world who are the victims of physical, mental and emotional abuse. 

Explanation

International day for biological diversity is observed on 22 May every year. 

Theme 2022: Building a shared future for all life

Theme 2023: From Agreement to Action: Build Back Biodiversity

Theme 2024: Be Part of the Plan

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Explanation

Every year China celebrates its national day on 1st Oct 

The first time China's National Day was celebrated on 1st Oct 1949

Mao Zedong officially declared the formation of the People's Republic of China on 1 Oct 1949