NSO-National Science Olympiad |C-8 Transport and Communication| Class-2 Olympiad Practice Questions
This video is useful to understand concept of Transport and Communication:
1. Modes and means of transport 2. Means of communication 3. Road signs, maps and directions.
• Transport: Transport or we can say transportation is the movement of people, animals and things from one place to another. Modes of transport is a term used for different ways or methods of transport. Each mode has its own infrastructure, vehicles and operations. Means of transport is the type of vehicle used.
• Modes of transport: Land transport: Run by man power, e.g., bicycle, cycle- rickshaw; run by animals, e.g., bullock carts, tongas; run by petrol or diesel or gas engines, e.g., car, bus, truck, etc.; run by steam or diesel or electric engines, e.g., trains, etc.
• Water transport: Boats, ships, sailboat, steamers, submarines, etc., are used for it. These carry people and goods across rivers and seas.
• Air transport: It is the fastest mode of transport. Aeroplanes, helicopters, jet planes, etc., are used for it.
• Means of communication: Communication Means to speak, write or use signs and sounds to share ideas and information with each other.
• Telephone, mobile/cellular phone, e-mail, fax, etc., are modern means of communication. They are also fastest means of communication.
• Postcard, aerogrammes, inland letters in stamped envelope are means of postal communication.
• People who cannot speak or hear, communicate through sign language.
• Personal communication: Communication between two persons. For example writing a letter to someone, speaking with someone.
• Mass communication: Communication with many people at the same time. For example: Advertisement on television, book, newspaper, etc.
This video is useful to MCQs with Explanations, Achievers section and Practice Questions.
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