Explanation

Aluminium burns in oxygen with a brilliant white flame, producing aluminium oxide (Al₂O₃).

This reaction is highly exothermic.

It is often seen in thermite reactions and metal combustion demonstrations.

Explanation

Ethylene oxide is used to produce glycols and other intermediates, which are ingredients in lipsticks for smooth texture and consistency.

It contributes to the emulsifying agents and solvents used in cosmetic formulations like lipstick for better blend and stability.

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

"Wisdom" is an abstract noun because it refers to a quality or idea that cannot be seen or touched.

It represents a state of mind, not a physical object.

Explanation

Robert Glaser developed the Basic Teaching Model, focusing on clear instructional goals and assessment.

It emphasizes feedback and mastery learning to improve student performance.

Explanation

یہ فرشتوں کا کعبہ ہے، جہاں ہر روز ستر ہزار فرشتے طواف کرتے ہیں 

یہ خانہ کعبہ کے اوپر ہے، جو ساتویں آسمان پر واقع ہے. 

فرشتے بیت المعمور کا طواف کرتے ہیں اور اس کی عبادت کرتے ہیں. 

بیت المعمور کو فرشتوں کا قبلہ بھی کہا جاتا ہے. 

سورہ طور میں، اللہ تعالیٰ نے بیت المعمور کی قسم کھائی ہے.

Explanation

Tactical objectives break down broader strategic goals into actionable steps.

They guide departments or teams in executing specific tasks aligned with the main strategy.