Explanation

Ernest Rutherford showed (1919) that nitrogen under alpha-particle bombardment ejects what appear to be hydrogen nuclei.

By 1920 Ernest Rutherford had accepted the hydrogen nucleus as an elementary particle, naming it proton.

while

Electron was discovered by J. J. Thomson in 1897.

Explanation

Jogendra Nath Mandal was the first federal law minister of Pakistan.

He was appointed to the position in 1947.

He played a significant role in the early governance of the country.

Explanation

The correct phrase is “He is junior to me”.

This is because junior is a comparative adjective.

that is used to show the relation between two people in terms of rank, age, or experience.

Comparative adjectives like junior, senior, superior, or inferior are followed by the preposition to, not than.

Explanation

Pakistan has been an active Member of the Organization.

Pakistan join the OIC for the first time in 1969

Pakistan hosted the Second OIC Summit Conference on 22-24 February 1974 in Lahore

OIC headquarters is located in Jadda.

OIC Stands for Organization of Islamic Cooperation

It is the largest international organization outside of the United Nations.

The official languages of the OIC are Arabic, English, and French.

It changed its name on 28 June 2011 from the Organization of the Islamic Conference to its current name.

Total Current member= 57

The first summit of OIC was held in Rabat

Explanation

Ameer Khusro is considered the first poet of Pashto and Urdu

The Full name of Amīr Khusrau : Ab'ul Hasan Yamīn ud-Dīn K͟husrau

Khusrau is credited for the invention of the sitar.

Amīr Khusrau lived under the Delhi Sultanate. 

Amīr Khusrau  Born: 1253, Patiyali

Amīr Khusrau  Died: on October 1325, in Delhi, India

The Place of burial of Amīr Khusrau: Hazrat Nizamuddin Aulia Dargah, New Delhi, India

while

Baba Farid is the first Punjabi poet.

Allama Iqbal is the National poet of Pakistan

Hassan Bin Sabit was the first poet of Islam.

Explanation

Mughal Emperor Shah Jahan built Shalimar Gardens in Lahore.

It was built in the year 1641-42.

It is included in World Heritage Site: 1981

Explanation

superscript is CTRL+SHIFT & +

Subscript is only CTRL& =

Superscript & subscript are known as Font effects.

Superscript is used to create small letters above the line of text.

Subscript is used to create small letters below the line of text

Subscript shortcut key: Ctrl, Shift + Plus sign (+)

Superscript shortcut key: Ctrl, Shift, and the Plus sign (+) at the same time.

Explanation

The pH of pure water (H20) is 7 at 25 °C

pH stands for "Potential Hydrogen"

Explanation

Swat is called the Switzerland of Pakistan 

Because of its snow-capped mountains and beautiful scenery.

KNOWN ABOUT SWAT

Swat District is a district in the Malakand Division of Khyber Pakhtunkhwa

Swat was merged with Pakistan in 1849

Capital: Saidu Sharif

Mingora is the largest city of Swat Valley

Gwalerai is a famous city for apples in Swat

Explanation

Clean means صاف

Dirty means گندا