Explanation

• Vitamin A deficiency → Night blindness (Nyctalopia)
• Vitamin A is important for vision and immune function.

Additional information:

• Vitamin K is essential for blood clotting.
• Vitamin D helps in calcium absorption and bone mineralization.
• Vitamin B1 supports nerve function and energy metabolism.

Last verified on 01-02-2026

Explanation

• Author: J. K. Rowling
• Full Name: Joanne Rowling
• Born: 1965
• Birth Place: United Kingdom
• Profession: Author, Screenwriter
• Harry Potter series has 7 main books.
• First book: Harry Potter and the Philosopher’s Stone (1997).

Last verified on 04-04-2026

Explanation

• Saturn is the second-largest planet in the solar system.
• Ganymede (Moon of Jupiter) is the largest satellite in the solar system.

Planets and Natural Satellites:

1. Mercury: 0
2. Venus: 0
3. Earth: 1 (Moon)
4. Mars: 2 (Deimos, Phobos)
5. Jupiter: 95
6. Saturn: 274
7. Uranus: 27

Last verified on 02-05-2026

Explanation

• Vishnu is one of the major deities in Hinduism.
• He is known as the Preserver (Protector of the Universe).
• He maintains balance and order in the world (Dharma).
• He is part of the Hindu Trinity (Trimurti).
• The other two are Brahma (Creator) and Shiva (Destroyer).

Last verified on 27-04-2026

Explanation

• Syed Ameer Ali authored "The Spirit of Islam".
• It was published in 1891.
• The book provides a comprehensive study of Islam's core principles and beliefs.

Last verified on 25-04-2026

Explanation

• The largest planet in our solar system is Jupiter.
• 5th planet
• 79 known moons (Maximum number of moons)
• The Great Red Spot is a prominent feature
• Giant planet and the fastest-rotating planet 
• Rotates approximately once every 10 hours.
• Age is about 4.603 billion years.

Additional information

• Mercury is the smallest planet of the solar system.

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Last updated by NA on 25-April-2026

Explanation

Suez Canal

• Location: Egypt
• Opened: 1869
• Length: 193 km
• Connection: Links Mediterranean Sea to Red Sea
• Purpose: Provides the shortest maritime route from Europe to Asia

Last verified on 08-02-2026

Explanation

• The tomb of Babur, the first Mughal Emperor, is located in Bagh-e Babur, Kabul (Afghanistan).
• He died on 5 January 1531 in Agra at the age of 47.
• Initially, he was buried in Agra.
• Later, his remains were shifted to Kabul as per his wish.
• He was reburied in Kabul between 1539–1544.

Last verified on 02-04-2026

Explanation

• Qutub-ud-din Aibak died in an accident while he was playing polo.
• He fell from a horse and was severely injured.
• He died on 14 November 1210 (aged 60) in Lahore.
• Burial in Anarkali Bazaar, Lahore.
• He was born in 1150 in Turkestan.

 Additional information:

• He established the first independent Turkish Kingdom in India.
• He founded the first Islamic state was founded in 1206.
• He became the first Sultan of Delhi from 1206 to 1210.

After Muhammad Ghori's assassination in 1206.

• He established the Delhi Sultanate (1206–1526).
• He started the Mamluk Dynasty or Salve Dynasty.

Last verified on 04-04-2026

Explanation

• Taklamakan Desert is the largest desert in northwest China.
• It is the second-largest desert in the world.
• Located in the Tarim Basin, Southern Xinjiang, surrounded by major mountain ranges.
• It lies inside the Tarim Basin, bordered by Kunlun Mountains (S), Pamir Mountains (W), Tian Shan (N), and Gobi Desert (E).
• Known as a “Sea of Death” due to its harsh climate and shifting sand dunes.
• Area: ~337,000 sq km

Last verified on 04-04-2026