Explanation

The element of an electric stove made nicrome.

Nichrome 80/20 is an ideal material, because it has relatively high resistance and forms an adherent layer of chromium oxide when it is heated for the first time.

Explanation

The first open-heart surgery in India was performed on February 16, 1961

By Dr. K.N. Dastur at BYL Nair Hospital in Mumbai.

He used a heart-lung machine developed with the help of engineers at the National Steel Company.

The surgery was performed on a 19-year-old girl named Hemlata 

Explanation

A path is a little road (often so small that only one person can use it at a time),

while a highway is a large road with room for thousands.

A brook and a river have a similar size relationship.

Explanation

Armistice ended fighting of: Ottoman Empire and the Allies

Held: October 1918

Explanation

 The world's first public airline was DELAG (Deutsche Luftschiffahrts-Aktiengesellschaft),

It was founded on November 16, 1909, with government support

Its headquarters is in Frankfurt

DELAG, meaning "German Airship Navigation Company,"

Explanation

• A lake starts freezing because of the cold atmosphere. It will first freeze At the top surface
• ***
• concept:
• when the water freezes to ice, the ice becomes significantly less dense than the water and continues to float on the lake's surface.
• Below 4° Celsius, water becomes less dense as it gets colder, causing water to freeze to float to the top.
  
  

Explanation

The committee of the Norwegian Parliament awards the prize for peace.

The Nobel Peace Prize is awarded by a committee of five, appointed by the Storting .

The Norwegian Nobel Committee 2019.

Explanation

 Anaerobic Organisms: Anaerobic organisms, including certain bacteria, are those that do not require oxygen for growth and survival. 

Oxygen Toxicity: Some anaerobic bacteria are highly sensitive to oxygen and cannot tolerate its presence, while others can tolerate small amounts of oxygen. 

Explanation

Ibn-al-Arabi propounded the Sufi philosophy of wahdat-ul-wujud 

Wahdat-ul-Wujud means onceness of being.

He was one of the greatest Muslim philosophers. 

Explanation

The idiom "against one's grain" means "against one's nature."

It indicates something contrary to a person's natural inclination, feelings, or beliefs