2451: Which one of the following plants can fix nitrogen from air?

(a) Rice

(b) Wheat

(c) Pea

(d) Maize
2452: Match List I with List II and select the correct answer by using the codes given below the lists :

List I List II

I. Visakhadatta (A) Medicine
II. Varahamihira (B) Drama
III. Charaka (C) Astronomy
IV. Brahmagupta (D) Mathematics

Codes:

(a) I - A, II - C, III - D, IV - B
(b) I - B, II - A, III - C, IV - D
(c) I - B, II - C, III - A, IV - D
(d) I - C, II - B, III - A, IV - B
2453: The following figure represents sales (in thousands) over the period 1978 to 1983 :

The sales in 1981 exceeded that in 1979 by

(a) Rs. one hundred
(b) Rs. ten thousand
(c) Rs. one lakh
(d) Rs. ten lakh
2454: Which one of the following pairs of materials serves as electrodes in chargeable batteries commonly used in devices such as torchlights, electric shavers, etc?

(a) Nickel and cadmium

(b) Zinc and carbon

(c) Lead peroxide and lead

(d) Iron and cadmium
2455: State Funding of elections takes place in

(a) USA and Canada
(b) Britain and Switzerland
(c) France and Italy
(d) Germany and Austria