2836: Which one of the following is used for dating archaeological specimens in wood, bones and shells?
(a) Uranium-238
(b) Argon isotope
(c) Carbon-14
(d) Strontium-90
2837: The great Asian river Mekong does not run through :
(a) China
(b) Malaysia
(c) Cambodia
(d) Laos
2838: The average speed of a train in the onward journey is 25% more than that of the return journey. The train halts for one hour on reaching the destination. The total time taken for the complete to and fro journey is 17 hours covering a distance of 800 km. The speed of the train in the onward journey is
(a) 45 km per hour
(b) 47.06 km per hour
(c) 50.00 km per hour
(d) 56.25 km per hour
2839: In what way Indian cotton industry was inferior to that of England during the British rule in India:
(a) Indian textile industry had an ever increasing and large domestic market
(b) There was plenty of raw material available
(c) The industry was not managed by highly skilled technicians and managers
(d) India was the traditional home for cotton textiles
2840: Wisdom teeth normally grow during the age of:
(a) 34-----40 years
(b) 12-----15 years
(c) 17------30 years
(d) 40------45 years