2566: Which one of the following parts of human brain is the regulating centre for swallowing and vomiting?
(a) Pons
(b) Medulla oblongata
(c) Cerebrum
(d) Cerebellum
2567: A and B can do a piece of work in 4 days. If A can do it alone in 12 days, how much time B will take to finish it alone?
(a) 4 days
(b) 6 days
(c) 8 days
(d) 10 days
2568: Which one of the following foreign travellers elaborately discussed about diamonds and diamond mines of India?
(a) Francois Bernier
(b) Jean-Baptiste Tavernier
(c) Jean de Thevenot
(d) Abbe Barthelemy Carre
2569: Consider the following statements:
1. The Barren Island volcano is an active volcano located in the Indian territory.
2. Barren Island lies about 140 km east of Great Nicobar.
3. The last time the Barren Island volcano erupted was in 1991 and it has remained inactive since then.
Which of the statements given above is/are correct?
(a) 1 only
(b) 2 and 3
(c) 3 only
(d) 1 and 3
2570: Which of the following is geographically closest to Great Nicobar ?
(a) Sumatra
(b) Borneo
(c) Java
(d) Sri Lanka