Explanation

Explanation

At extremely low temperatures, helium-4 becomes a superfluid, a state with zero viscosity.

In this state, it can flow without friction, even climbing walls of containers — a quantum phenomenon.

Explanation

In electric meters, current flowing through coils generates a magnetic field.

This magnetic field causes the aluminum disc inside the meter to rotate, measuring energy usage.

Explanation

All the apples have been eaten by them.

In passive voice, the object ("all the apples") becomes the subject and the tense remains present perfect.

Structure: has/have + been + past participle → have been eaten.

Explanation

After the 1857 War of Independence, the British held Muslims primarily responsible due to their leadership role and historical resentment from the fall of the Mughal Empire.

As a result, Muslims faced harsher repression, including loss of property, jobs, and educational opportunities during British rule.

Explanation

Maria Montessori emphasized learning through hands-on experiences using concrete materials.

Her method fosters independent learning in a prepared environment tailored to the child's development.

Explanation

The Psychoanalytic Theory by Freud suggests that morality comes from the superego, which develops in early childhood.

The superego forms through identification with parents' values and rules, especially during the preschool years.

Explanation

A standard compact disc (CD) is 120 mm (12 cm) (4.75 inches) in diameter and 1.2 mm (0.05 inch) thick.

This size is widely used for storing data, music, or video.

Explanation

راس الامر الاسلام و عمودہ الصلوة ایک حدیث ہے جس کا مطلب ہے "اسلام کا سرِ ستون نماز ہے"۔

یہ حدیث نبی صلی اللہ علیہ وسلم کی طرف سے آئی ہے اور نماز کی اہمیت کو بیان کرتی ہے۔

Explanation

The sentence combines the two ideas using the relative adverb "where," which links the place (town) with the action (grew up).

This construction clearly expresses both the location and the action in a grammatically correct manner.