2686: Which one of the following east flowing rivers of India has rift valley due to down warping ?
(a) Damodar
(b) Mahanadi
(c) Sone
(d) Yamuna
2687: Rajiv Gandhi National Flying Institute is being established in which State?
(a) Maharashtra
(b) Kerala
(c) Karnataka
(d) Orissa
2688: Arrange the following in the decreasing order of their carbon content:
I. Cast iron
II. Wrought iron
III. Steel
(a) I, II, III
(b) II, I, III
(c) III, II, I
(d) I, III, II
2689: Ashtapradhan was a Council of Ministers
(a) in the Gupta Administration
(b) in the Chola Administration
(c) in the Vijayanagar Administration
(d) in the Maratha Administration
2690: Which one among the following South Asian countries has the highest population density?
(a) India
(b) Pakistan
(c) Nepal
(d) Sri Lanka