Explanation

• World Environment Day is on 5 June.
• First observed in the city of Spokane in the USA in 1974.
• Established by the UN General Assembly in 1972.
• It is also called Eco Day.

Additional information:

Theme:

• 2020: Time for Nature in Colombia
• 2021: Ecosystem restoration in Pakistan
• 2022: Only One Earth in Sweden
• 2023: Solutions to Plastic Pollution in the Ivory Coast
• 2024: Land restoration, desertification, and drought resilience in Riyadh, Saudi Arabia
• 2025: Ending plastic pollution in South Korea

Last verified on 04-06-2026

Explanation

• Aga Khan III was the first president of the All-India Muslim League, founded in 1906.
• He led the Muslim deputation to the British Viceroy the same year to represent Muslim interests.
• Born: 2 November 1877, Karachi
• Died: 11 July 1957, Versoix, Switzerland
• Burial: Aga Khan Mausoleum, Egypt

Founders of All-India Muslim League:

1. Muhammad Ali Jinnah
2. Aga Khan III
3. Khwaja Salimullah
4. Hakim Ajmal Khan

Last verified on 16-03-2026

Explanation

• The snow line is also known as the snow level or snow boundary.
• It refers to the elevation or altitude above which snow remains on the ground for a significant part of the year, often perpetually.
• It marks the boundary between the area where snow melts completely during the summer and the area where snow remains year-round.

Last verified on 17-05-2026

Explanation

• Metals allow electricity to pass through them easily.
• Among all metals, silver has the highest electrical conductivity.
• Copper and gold are also very good conductors.
• Silver is widely used in high-precision electrical applications.
• Copper is commonly used in wiring due to cost-effectiveness.

Last verified on 16-05-2026

Explanation

• The All India Muslim League was a political party of Muslims in British India.
• It was founded on 30 December 1906 at Dhaka to protect Muslim rights.
• The name was associated with Nawab Khwaja Salimullah’s initiative.
• Headquarters later shifted to Lucknow and other cities.

Last verified on 15-05-2026

Explanation

• Hajj was made compulsory in 9 A.H.
• It is the fifth pillar of Islam.
• It is obligatory once in a lifetime for Muslims who can afford it physically and financially.
• The word Hajj means “to intend” or “to set out for a journey.”
• Hajj is performed in Makkah during the Islamic month of Dhul-Hijjah.
• Mentioned in: Quran (Surah Al-Baqarah and Surah Aal-e-Imran)

Additional information:

• The first Hajj in Islam led by Muslims took place in 9 A.H.
• Prophet Muhammad performed the Farewell Hajj in 10 A.H.

Last verified on 10-05-2026

Explanation

• Vitamin K helps to make various proteins that are needed for blood clotting and the building of bones.
• Prothrombin is a vitamin K-dependent protein directly involved with blood clotting.

• Vitamin C may protect the body against the effects of pollution.
• It may also prevent blood clots and reduce bruising.

Last verified on 31-03-2026

Explanation

• The key of Baitullah (Kaaba) was entrusted by the Holy Prophet Muhammad (SAW).
• This event took place after the Conquest of Makkah (8 AH / 630 AD).
• The key was given to Hazrat Usman bin Talha (RA) from the Banu Abd al-Dar family.
• The Prophet (SAW) declared that this trust will remain in his family forever.

Last verified on 21-04-2026

Explanation

• The cover of the Holy Kaaba is called Kiswah.
• It is also known as Ghilaf-e-Kaaba in Urdu.
• It is made of black silk with golden embroidery.
• The Kiswah is replaced every year in Makkah.
• It is prepared with great care and religious respect.

Last verified on 25-04-2026

Explanation

• Washing soda is also known as sodium carbonate (Na2CO3).
• It is used to remove permanent hardness of water.
• Permanent hardness is caused by the presence of magnesium and calcium sulfates or chlorides in water, which cannot be removed by boiling.
• Washing soda helps to precipitate these minerals, making the water softer.

Last verified on 23-04-2026