1841: Which one of the following is not a satellite of Jupiter?
(a) Io
(b) Callisto
(c) Europa
(d) Titan
1842: Each person's performance compared with all other persons is to be done to rank them subjectively. How many comparisons are needed in total, if there are 11 persons ?
(A) 55
(B) 66
(C) 54
(D) 45
1843: Recently, there has been a concern over the short supply of a group of elements called 'rare earth metals'. Why?
1. China, which is the largest producer of these elements, has imposed some restrictions on their export.
2. Other than China, Australia, Canada and Chile, these elements are not found in any country.
3. Rare earth metals are essential for the manufacture of various kinds of electronic items and there is a growing demand for these elements.
Which of the statements given above is/are correct?
(a) 1 only
(b) 2 and 3 only
(c) 1 and 3 only
(d) 1, 2 and 3
1844: Which of the following is a cash crop ?
(a) Groundnut
(b) Wheat
(c) Rice
(d) Gram
1845: Many of the Greeks, Kushanas and Shakas embraced Buddhism rather than Hinduism because
(a) Buddhism was in the ascendant at that time
(b) they had renounced the policy of war and violence
(c) caste-ridden Hinduism did not attract them
(d) Buddhism provided easier access to Indian society