Explanation

Primary memory devices are more expensive than secondary storage devices.

Secondary memory devices are less expensive when compared to primary memory devices.

Primary memory is also known as Main memory or internal memory.

Secondary memory is also known as External memory or Auxiliary memory.

Explanation

 براہِ مہربانی یا براے مہربانی، براہِ مہربانی کے لفظی معنی ہیں ''مہربانی کی راہ سے''۔ اسی لیے اس کو ''ازراہِ مہربانی'' بھی لکھا جاتا ہے ۔

Explanation

Harappa was an Indus civilization urban centre.

It lies in Punjab Province, Pakistan, on an old bank/bed of the River Ravi. 

Harappa was the first site of the civilization to be excavated in 1921.

The excavation team was led by Daya Ram Sahni.

Explanation

Explanation

Qutab ud Din Aibak was the first ruler of the Muslim dynasty in Sub-Continent

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Qutb al-Din Aibak  was a general of Muhammad Ghori.

Qutab ud Din Aibak was in charge of the Ghurid territories in northern India, and after Muhammad Ghori's death.

he became the ruler of an independent kingdom that evolved into the Delhi Sultanate ruled by the Mamluk dynasty.

Qutab ud Din Aibak is buried in Lahore. 

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Al-khafif was the first ruler of soomra dynasty (1011-1026)

Mughal emperor Akbar the first Muslim ruler who tried to reconcile the differences between Muslims and Hindus

Razia Sultana the first woman ruler of India

Explanation

The Moon's surface gravity is about 1/6th as powerful or about 1.6 meters per second.

The Moon's surface gravity is weaker because it is far less massive than Earth.

A body's surface gravity is proportional to its mass, but inversely proportional to the square of its radius.

Explanation

Amble means چلنا

Walk means چلنا

Explanation

Explanation

Between the devil and the deep blue sea means:

in a difficult situation where there are two equally unpleasant choices.

Explanation