251: 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
252: Who among the following leaders did not believe in the drain theory of Dadabhai Naoroji ?
(a) B.G. Tilak
(b) R.C. Dutt
(c) M.G. Ranade
(d) Sir Syed Ahmed Khan
253: Which of the following are known as coastlines of submergence?
(a) Uplifted lowland
(b) Ria Coasts
(c) Emergent upland
(d) None of the above
254: Match List I with List II and select the correct answer using the codes given below the Lists:
List I---List II
I. Development Programme---(A) UN India Human Development Report
II. National Council of Applied Economic Research---(B) India Development Report
III. Indira Gandhi Institute of Development Research---(C) World Development Report
IV. World Bank---(D) Human Development Report
Codes:
(a) I-D, II-A, III-B, IV-C
(b) I-D, II-B, III-A, IV-C
(c) I-B, II-C, III-D, IV-A
(d) I-B, II-A, III-D, IV-C
255: Chlorophyll contains:
(a) Beryllium
(b) Calcium
(c) Magnesium
(d) Strontium