3376: Which one of the following is useful for biological control of pests?

(a) Honey bees and locusts

(b) Scorpions and spiders

(c) Wasps and birds

(d) Parrots and kites
3377: As regards the use of international food safety standards as reference point for the dispute settlements, which one of the following does WTO collaborate with?

(a) Codex Alimentarius Commission

(b) International Federation of Standard Users

(c) International Organization for Standardization

(d) World Standards Cooperation
3378: Who of the following organized a march on the Tanjore coast to break the Salt Law in April 1930?

(a) V. O. Chidambaram Pillai
(b) C. Rajagopalachari
(c) K. Kamaraj
(d) Annie Besant
3379: Match List I with List II and select the correct answer by using the codes given below the lists:

List I----------List II

I. Surendranath Bannerjee-------(A) Hind Swaraj
II. M. K. Gandhi-----------------(B) The Indian Struggle
III. Subhash Chandra Bose-------(C) Autobiographical Writings
IV. Lajpat Rai-------------------(D) A Nation in Making

Codes :

(a) I - D, II - A, III - C, IV - B
(b) I - A, II - D, III - C, IV - B
(c) I - A, II - D, III - B, IV - C
(d) I - D, II - A, III - B, IV - C
3380: Which of the following crops helps in nitrogen fixation?

(a) Rice

(b) Wheat

(c) Maize

(d) Beans