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 Chapter 14  →

Chapter 13
Sound

Science Helpbook Solutions
Class 8, Lakhmir Singh Chapter 13: Sound

 Chapter 14  →

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Crop Production and Management

Microorganisms Friend and Foe

Synthetic Fibers and Plastics

Materials Metals and Non Metals

Coal and Petroleum

Combustion and Flame

Conservation of Plants and Animals

Cell Structure and Functions

Reproduction in Animals

Reaching the Age of Adolescence

Force and Pressure

Friction

Sound

Chemical Effects of Electric Current

Some Natural Phenomena

Light

Stars and the Solar System

Pollution of Air and Water

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