4006: Mixed cropping is useful when:

(a) Crops with varying maturity periods are sown together

(b) Crops with same maturity period are sown together

(c) Different soils are used for the same crops

(d) Crops with different nutritional requirements are grown
4007: When ants bite, they inject

(a) glacial acetic acid
(b) methanol
(c) formic acid
(d) stearic acid
4008: MERCOSUR consists of group of countries of

(a) Africa

(b) Asia

(c) Latin America

(d) South East Asia
4009: Match List I with List II and select the correct answer using the codes given below the Lists :

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

(Minerals) ------------- (Major producer)

I. Mineral oil ------------ (A) Zambia
II. Copper -------------- (B) Guyana
III. Manganese ---------- (C) Venezuela
IV. Bauxite -------------- (D) Gabon

Codes:

(a) I-C, II-A, III-D, IV-B
(b) I-C, II-A, III-B, IV-D
(c) I-A, II-C, III-B, IV-D
(d) I-A, II-C, III-D, IV-B
4010: In which one of the following States is Pakhui Wildlife Sanctuary located?

(a) Arunachal Pradesh
(b) Manipur
(c) Meghalaya
(d) Nagaland