11. 'India is known for exchange of goods, services and culture since ancient time'.
Give reasons.
12. Why do we use a standard meridian for India? Explain.
13. Why there is a time gap of two hours between Arunachal Pradesh and Dwarka
in Gujarat?
14. Which island group lies to the south east and south west of India?
15. Why is it necessary to select Standard Meridian? Why ISM has been selected in
an odd value of 82½ E?
Answers
Answer:
11.indian contacts with the world have continued through the ages,But her relationships through the land routes are much older than her maritime contacts.The various passes across the mountains in the north have provided passages to the ancient travellers,while the ocean restricted such interaction for a long time.These routes have contributed in the exchange of ideas and commodities since ancient times.The ideas of upanishads and the Ramayana, the stories of panchtantra the indian numerals and the decimal system.the spices,muslin and other merchandies
were taken from India to different countries.
12.We need a standard meridian for India because there is a time lag of about 2 hours between Gujarat and Arunachal Pradesh.
13.There is a time lag of two hours between Gujarat to Arunachal Pradesh, due to the longitudinal extent of India.
14.Andaman and Nicobar island group lie to the south-east of the Indian mainland.
15.This is because India is a vast country and have a great difference in sunrise timing along East in Gujrat and West in Arrunachal Pradesh. Hence, it is necessary to have a specific time all over the India which is done by taking Standard Meridian of India at 82.300East at the Tropic of Cancer passing through the middle of India.