This mode of transport is most suitable for carrying heavy and bulky goods

1. Airways
2. Waterways
3. Railways
4. Roadways

The longest National Waterway of India is from

1. Ganga, Allahabad to Haldia
2. Kollan to Kottapuram in Kerala
3. Brahmaputra river to Sadia in Assam
4. Kakinada to Pondicherry

What is the importance of Roadways in the economic development of India?

Compare and contrast Railways with Airways.