Explanation

Eratosthenes was the first person to calculate the Earth's radius in the 3rd century B.C.E.

He was a Greek astronomer who lived in Alexandria, Egypt.

Eratosthenes's calculation of the Earth's radius was 6,366 km, which is close to the modern value of 6,378 km.

Explanation

When the soap is in the form of micelles then it has the ability to clean the oily dirt which gets accumulated at the centre.

These micelles remain as colloidal solutions.

Therefore, the dirt from the cloth is easily washed away.

Explanation

Bathsheba Beach is located on the eastern coast of Barbados, a Caribbean island nation.

It is known for its stunning natural beauty, .

The beach is named after Queen Bathsheba, the wife of King David in the Bible.

Explanation

With a hyperlink cannot be used to link Excel worksheet data to a Word document for dynamic updates.

Hyperlinks can only direct to the Excel file but do not embed or link data directly.

Explanation

"Keep a straight face" is an idiomatic expression that means to maintain a serious and neutral expression, without showing any emotion, especially when someone is joking or trying to be funny.

It is often used to describe a situation where someone is trying not to laugh or show amusement.

Explanation

The Simla Agreement was signed on July 2, 1972.

In between Indian Prime Minister Indira Gandhi and Pakistani President Zulfikar Ali Bhutto.

It established the Line of Control (LoC) in Kashmir and facilitated the repatriation of prisoners of war and the return of occupied territories.

Explanation

Firefox and Google Chrome are popular web browsers used to access the internet.

They allow users to view and interact with web pages.

Mozilla Firefox, or simply Firefox, is a free and open-source web browser

Initial release  September 23, 2002.

In 2017, Firefox began incorporating new technology under the code name Quantum to promote parallelism and a more intuitive user interface.

Explanation

The theory of relativity usually encompasses two interrelated theories by Albert Einstein:

They were proposed and published in 1905 and 1915

E =mc2

C in this equation, the velocity of light

Explanation

Explanation

Air Marshal Zaheer Ahmad Babar, is the 23rd and the current Chief of Air Staff of the Pakistan Air Force since 19 March 2021, he replace Mujahid Anwar Khan .

Zaheer Ahmad Babar joined the force in 1986 as a fighter pilot 

He belongs to Sidh, Gujrat.