Man started using animals for transportation about:
Huge data is transmitted to long distances with the help of:
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In thickly forested areas and mountains, which mode of transport is best suited:
The best mode of transporting fuel oil and water in a thickly forested area and on mountains is:
Which is the last point of HBJ pipeline in Northern India?
Which country has the longest road network in the world?
The longest double tracked and electrified transcontinental railway in the world is the:
180 videos|475 docs|198 tests
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180 videos|475 docs|198 tests
|