Read the case given below carefully and answer the questions that follow: Lifelines of National Economy For a long time, trade and transport were…

Read the case given below carefully and answer the questions that follow : Lifelines of National Economy For a long time, trade and transport were restricted to a limited space. With the development in science and technology, the area of influence of trade and transport expanded far and wide. Today, the world has been converted into a large village with the help of efficient and fast moving transport. Transport has been able to achieve this with the help of equally developed communication system. Therefore, transport, communication and trade are complementary to each other. Today, India is well-linked with the rest of the world despite its vast size, diversity and linguistic and socio-cultural plurality. Railways, airways, waterways, newspapers, radio, television, cinema and internet, etc. have been contributing to its socio-economic progress in many ways. The trades from local to international levels have added to the vitality of its economy. It has enriched our life and added substantially to growing amenities and facilities for the comforts of life. ($\displaystyle 12.1$) How is science an important factor in the development of transport? ($\displaystyle 12.2$) How has transport integrated socio-cultural plurality? Explain. ($\displaystyle 12.3$) Analyse the significance of communication for a nation.