3206: Which one of the following dynasties was ruling over North India at the time of Alexander's invasion ?

(a) Nanda

(b) Maurya

(c) Sunga

(d) Kanva
3207: Sugarcane crop matures in about:

(a) 2 months

(b) 4 months

(c) 8 months

(d) 12 months
3208: Three communicable diseases prevalent in developing countries caused by unsafe drinking water and bad sanitation are

(a) acute diarrhoea, cancer and gout

(b) malaria, acute diarrhoea and schistosomiasis

(c) onchocerciasis, leukaemia and arthritis

(d) rheumatism, malaria and AIDS
3209: Match List I (Power generation plant) with List II (Feed material) and select the correct answer using the codes given below the Lists:

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

I. M/s Gowthami Solvents Oil Limited, Andhra Pradesh--(A) Rice husk

II. M/s KM. Sugar Mills, Uttar Pradesh-----------------(B) Slaughter house waste

III. M/s Satia Paper Mills, Punjab----------------------(C) Distillery spent wash

IV. M/s Al Kabeer Exports Limited, Andhra Pradesh------(D) Black liquor

Codes:

(a) I-C, II-A, III-B, IV-D
(b) I-C, II-A, III-D, IV-B
(c) I-A, II-C, III-D, IV-B
(d) I-A, II-C, III-B, IV-D
3210: Pyrilla is a

(a) Disease of teeth and gums

(b) An insect pest

(c) A character of ancient Greek mythology

(d) A building heated by solar energy