निम्नलिखित परिवहन प्रणालियों को प्रति किलोमीटर उनकी विशिष्ट प्रारंभिक अवसंरचना स्थापना लागतों के बढ़ते क्रम (निम्नतम से उच्चतम) में व्यवस्थित कीजिए: 1. पाइपलाइनें 2. सड़क परिवहन 3. रेलमार्ग 4. हवाई मार्ग

With reference to the Trans-Siberian Railway, consider the following statements: (a) It connects Russia’s western regions with the Pacific coast. (b) It is entirely single-tracked and non-electrified. (c) It has facilitated the export of resources from Asian Russia to European markets. (d) It crosses major river systems including the Ob and Yenisei. Which of the statements given above are correct?

Arrange the following transport developments in chronological order of their historical emergence (earliest to latest): 1. Use of pack animals 2. Invention of the wheel 3. Introduction of steam engine in transport 4. Development of internal combustion engine