996: The messages received by and transmitted from the brain to the various parts of the body take the form of:
(a) Nervous impulses
(b) Chemical impulses
(c) Mechanical impulses
(d) Automatic impulses
997: A rectangular sheet of aluminium foil measuring 5 cm by 10 cm is rolled into a cylinder of height 10 cm. If the cost of painting the cylinder is Rs. 2/- per sq cm, then the cost of painting the surface of the cylinder will be
(a) Rs. 400/-
(b) Rs. 200/-
(c) Rs. 150/-
(d) Rs. 100/-
998: Which of the following two continents are just like the mirror images of each other?
(a) South America and Africa
(b) South America and North America
(c) South America and Australia
(d) Europe and Asia
999: India has experienced persistent and high food inflation in the recent past,what could be the reasons?
1.Due to a gradual switchover to the cultivation of commercial crops, the area under the cultivation of food grains has steadily decreased in the last five years by about 30%.
2. As a consequnce of increasing incomes, the consumption patterns of the people have undergone a significant change.
3. The food supply chain has structural constraints.
Which of the statements given above are correct ?
(a) 1 and 2 only
(b) 1 and 3 only
(c) 2 and 3 only
(d) 1, 2 and 3
1000: The coal mining areas of the Damodar Valley region include
(a) Korba, Sonhat and Raigarh
(b) Singareni, Tandur and Sasti
(c) Raniganj, Jharia and Giridih
(d) Talcher. Ghanda and Sambalour