Explanation

Abu Ayyub al-Ansari أبو أيوب الأنصاري

The patronym Abu Ayyub, means father (abu) of Ayyub. Abu Ayyub died of illness during the First Arab Siege of Constantinople.

Born Yathrib, Hejaz, Arabia

Died c. 674 Constantinople, Byzantine Empire

Relations Banu Khazraj (Banu Najjar

Explanation

• Fatimah was married in AD 624 to Ali ibn Abi Talib (l. AD 601-661), a cousin of Prophet Muhammad, and the marriage lasted to the end of her days.
  
• Hazrat Ali (R.A) was attacked with a poisoned sword On 19th Ramazan 40th Hijri,
• before the time of FAJAR prayers to the mosque of Kufa.
• He died on the 21st of Ramadan 40 A.H.
• He was buried in Najaf al-Ashraf (Iraq).

Explanation

• Hazrat Abu Salam (RA)
  
• Abdullah ibn Salam was a Jew in Yathrib who belonged to the Banu Qaynuqa tribe and claimed descent from Joseph.
• He was widely respected and honored by the people of the city, including those who were not Jewish. He was known for his piety and goodness, righteous conduct and truthfulness.
  

Explanation

Bauxite is the most common aluminum ore. Approximately 98% of primary aluminum production is based on bauxite

Explanation

Currently, the United States has won the highest number of Nobel Prizes with 400 from 1901 to 2021.

The nation with the next highest number of Nobel Prizes is the United Kingdom with 138.

Germany has won the next highest number of prizes with 111 and is the third country with more than 100 Nobel laureates

Explanation

Answer:

B

• Electric impulse also called  Nerve impulse
•  Messages in the form of electrical impulses are constantly moving back and forth between the brain and other parts of the body. A special cell called a neuron is responsible for sending these messages.

Explanation

Answer:

c

The Ferro-chromite rod aerial antenna is a form of RF antenna that is almost universally used in portable transistor broadcast receivers as well as many hi-fi tuners where reception on the long, medium, and possibly the short wave bands is required.

Explanation

Answer:

c

Mach number is a measure of the speed of an airplane. When we say an aircraft is flying at Mach 1, it means that the speed of the vehicle is 343 m/s. Mach number is the ratio between the true airspeed of the aircraft and the local speed of sound.

Explanation

Answer:

D

Chloromycetin is a prescription medicine used to treat the symptoms of Serious Infections such as Meningitis, Typhoid, and Rickettsial Infection. 

Explanation

The main reason for adding helium to the breathing mixture is to make the nitrogen-oxygen ratio lower than the air ratio so that the gas mixture can breathe safely in the deep sea. Lower levels of nitrogen are needed to reduce deep gas nitrogen anesthesia and other physiological effects.