Explanation

Pressure formula is expressed as P = F/A,

• where P is pressure,
• F is force,
• and A is the area by which the force is applied perpendicularly.

Its SI unit of pressure is Pascal (represented as Pa) 

Definition of Pressure:

 Pressure can be defined as the force acting per unit area.

Explanation

Besieged means محاصرہ

Encircled means گھیرے ہوئے

Explanation

Curriculum development is an ongoing process that requires continuous evaluation and improvement.

It follows a regular cycle of planning, implementation, assessment, and revision.

Explanation

Explanation

Pedagogy is the science and art of teaching children.

It involves strategies, methods, and practices used in school education.

Explanation

Here ignorance means درگزر

Ignoring minor inappropriate behavior is often an effective strategy to reduce it, as it deprives the behavior of attention, which can discourage repetition.

Praise and reward are better used to reinforce positive behavior.

Strictness may be counterproductive for minor issues.

Explanation

Muscle is a type of tissue that contracts to produce movement.

The three main types of muscle tissues are skeletal, smooth, and cardiac.

Explanation

Persuasive means قائل کرنا

Unconvincing means مانا نہ جا سَکنے والا

Explanation

پاکستان کے جنوب میں واقع سمندر بحیرہ عرب ہے۔

کراچی اور گوادر جیسے بندرگاہی شہر اسی سمندر کے کنارے واقع ہیں۔

Explanation

"For" is used with a duration of time (e.g., for an hour, for two days).

"Since" is used for a specific point in time (e.g., since morning, since 2 PM).

Here, "nearly an hour" is a duration, so "for" is the correct choice.