Class 8 Science – Sound: Production and Propagation 1. Introduction Sound is a form of energy that produces a sensation of hearing. It is produced when an object vibrates and creates...
Class 8 Science – Friction: Factors, Advantages, and Disadvantages 1. Introduction Friction is the resistance offered by a surface when one object moves over another. It opposes motion...
Class 8 Mathematics – Quadrilaterals 1. Introduction A quadrilateral is a polygon with four sides and four angles. The sum of all interior angles of a quadrilateral is always 360°. Quadrilaterals...
Formal Letter Format (Block Style) Sender's Address: Your address (postal format). Date: The date the letter is written. Recipient's Address: Name, title, and address of the person/company. Subject...