Explanation

Autopsy is a medical examination performed on a dead body to determine the cause of death or study disease.

It involves analyzing organs and tissues post-mortem.

Explanation

Karl Marx famously said, "All history is the history of class struggle" in his manifesto "The Communist Manifesto" (1848).

This quote encapsulates his belief that social and political change is driven by conflicts between different social classes, particularly between the ruling class (bourgeoisie) and the working class (proletariat).

Explanation

• The speed of sound in air at 0°C (32°F) is 332 meters per second.

The speed of sound in different materials:

• Air: 332 m/s
• Sea water: 1530 m/s
• Lead: 2160 m/s
• Gold: 3240 m/s
• Brick: 3650 m/s
• Copper: 4760 m/s
• Glass: 5100 m/s
• Aluminium: 6420 m/s

Explanation

Gloss means چمک

Brightness means چمک

Explanation

Punctuation is a series of symbols and marks that make written language easier to read.

We use punctuation marks to denote pauses, separate elements of sentences, or add emphasis to parts of our writing.

Explanation

Punctuation is used to clarify the meaning of written or printed language.

Well-planned word order requires a minimum of punc - tuation.

Explanation

Increasing the energy of a sound wave amplifies its amplitude, resulting in a louder sound.

Loudspeakers work by converting electrical energy into sound energy, so higher energy input leads to a louder output.

Explanation

• The Indus Waters Treaty, signed on September 19, 1960, between India and Pakistan and brokered by the World Bank.
• It allocates the Western Rivers (Indus, Jhelum, Chenab) to Pakistan and the Eastern Rivers (Ravi, Beas, Sutlej) to India.
• It was signed in Karachi by Pakistan President Ayub Khan, Indian Prime Minister Jawaharlal Nehru, and Mr. W.A.B. Illif. 
• The Treaty became effective on April 1, 1960.

Explanation

The sentence should read: "My sister is not studying hard, but I am."

This is a comparative sentence, where the speaker is contrasting their own behavior with that of their sister.

The correct verb to use in this case is "am", which is the first person singular form of the verb "to be".

Explanation

The name of international borderline between India and Pakistan is called the Radcliffe line,

the border line was drawn by a British officer Cyrill Radcliffe in 1947 and the same line became the border after partition in 1947.

Line of Control (LoC) is the De facto boundary between Indian-administered Kashmir and Pakistani-administered Kashmir.

Its current form was demarcated after the 1972 Simla Agreement.