66.Even though the Railways are the most pervasive mode of transport in India, it is the road transport which received the maximum impetus in most of the post independence period. Which one of the following are the reasons for this? 1. Railways are cheap to operate but the associated capital costs are very high 2. Given the geographic spread of the human settlements, it is unrealistic that the railways along can serve the needs of transport 3. The per unit (tonne/km) cost of transport is cheaper in road compared to rail transport 4. Given to indivisible nature of the railways it is not always convenient for the population to avail of it with the same ease as private cars, buses or two wheelers Select the correct answer from the codes given below: Codes:

67.Consider the following statements about the mega cities of India: 1. Population of each mega city is more than 5 million 2. All the mega cities has important sea ports 3. Mega cities are either national or State capitals Which of these statements are correct?

68.The Palk strait lies between:

69.In India, the growth rate of population is the highest in:

70.Assertion (A) : India has experienced a phenomenal growth of population since 1951. Reason (R) : 1951 is called the demographic divide in India�s demographic history. Codes: