Explanation

Joseph Priestley discovered laughing gas (nitrous oxide) in 1772.

It was later studied for its anesthetic properties.

Explanation

Mikhail Gorbachev's key policies were Glasnost and Perestroika,

They were introduced during the 1980s as part of his effort to reform the Soviet Union.

Explanation

سبت اور رفع حضرت عیسیٰ علیہ السلام سے منسلک ہیں

۔

Explanation

FAO leads international efforts to defeat hunger.

FAO stands for The Food and Agricultural Organization 

It was founded on 16 October 1945

Its headquarters is located in Rome, Italy.

World Food Day is observed on 16 October. 

Explanation

Queen Victoria became the Empress of India (Kaisar-e-Hind) in 1876.

Although she was officially proclaimed Empress of India on January 1, 1877.

This change in title was the result of the British government passing the Royal Titles Act.

Explanation

On 5 August 2019, the Parliament of India voted in favour of a resolution tabled by Home Minister Amit Shah to revoke the temporary special status, or autonomy, granted under Article 370 of the Indian Constitution to Jammu and Kashmir

Explanation

Rasul Barrage is a barrage on the River Jehlum

Between Jhelum District and Mandi Bahauddin District of the Punjab.

It is situated 72 km downstream of Mangla Dam.

The current structure of the barrage was constructed in 1968

Explanation

The short story "Tota Kahani" by Ashfaq Ahmed was written in the 1970s.

Explanation

Calcium is crucial for:

• Building and maintaining strong bones and teeth
• Muscle function and contraction
• Nerve function and transmission
• Blood clotting and wound healing

Explanation

Nagqu is a prefecture-level city in the Tibet Autonomous Region of China.

It is known for its high altitude.

It is often referred to as the "Roof of the Roof of the World".

Due to its elevated location in the Tibetan Plateau.