Which invention revolutionized land transport by replacing the use of sledges? - The Wheel, What was the primary source of power for transport before the invention of the steam engine? - Animal Power, Which mode of transport is considered the cheapest for carrying heavy and bulky goods over long distances? - Water Transport (Shipping), What type of high-speed train uses magnets to float above the tracks to reduce friction? - Maglev Train, What do we call the network of paved roads that connect major cities and states within a country? - National Highways ,

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