31: The sex of the offspring is determined, when:

(a) The conception takes place

(b) The sperm fertilises the ovum

(c) The embryo is partially developed

(d) The end of gestation period is near
32: 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
33: What is the pH level of blood of normal person?

(a) 4.5-4.5
(b) 6.45-6.55
(c) 7.35-7.45
(d) 8.25-8.35
34: A box contains 5 sets of balls while there are 3 bails in each set. Each set of balls has one colour which is different from every other set. What is the least number of balls that must be removed from the box in order to claim with certainty that a pair of bails of the same colour has been removed?

(A) 6
(B) 7
(C) 8
(D) 9
35: Which one of the following animals was NOT represented on the seals and terracotta art of the Harappan culture ?

(a) Cow

(b) Elephant

(c) Rhinoceros

(d) Tiger