Explanation

Carbon dioxide (CO₂) is commonly used in fire extinguishers because it helps to displace oxygen and smother the fire, preventing it from spreading.

It is particularly effective for electrical fires and fires involving flammable liquids.

Explanation

Penicillin was discovered by Alexander Flaming In 1928.

Penicillin was the first true antibiotic.

The first patient Albert Alexander, a 43-year-old policeman, was treated with penicillin on 12 February 1941.

Alexander Flaming determined that penicillin had an antibacterial effect and published his findings in 1929.

Explanation

The ninth verse of Surah Yaseen was recited by Muhammad (PBUH) during the migration on September 24, 622.

Hazrat Abu Bakr (AS) accompanied the Prophet (SAW) in the migration (Hijra) from Makkah to Madina.

It started in the 13th Nabvi year.

The Hijri calendar begins from this event.

Muhammad (SAW) rode a camel named Qaswa and, along with Hazrat Abu Bakr.

Hid in a cave on the Mount of Thawr for three days and nights.

Surah Yasin is the 36ᵗʰ sūrah of the Quran.

Surah Yasin with 83 ayaat and 5 rukus.

The Surah was revealed in Makkah.

It is regarded as an earlier Meccan surah.

Explanation

The lifespan of a red blood cell is around 120 days.

Blood cells are made in the bone marrow.

Explanation

Explanation

JD Vance replaced Kamala Harris to become vice president of the United States in January 2025.

He is the 50th vice president of US.

He belongs to Republican Party 

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Updated & verified on 22 Jan 2025

Explanation

Samiullah Khan born September 6, 1951, in Bahawalpur.

He is a former field hockey player from Pakistan.

He was nicknamed The Flying Horse because of his great speed.

He is a former and veteran player of the Olympic Games.

National Game of Pakistan: Field Hockey.

Explanation

The cell is the basic structural, functional, and biological unit of all known organisms.

Explanation

Nitrous oxide, commonly known as laughing gas.

It is a chemical compound, an oxide of nitrogen with the formula N. O.

At room temperature, it is a non-flammable gas, with a slight metallic scent and taste.

Explanation