2346: Consider the following which can be found in the ambient atmosphere:

1. Soot

2. Sulphur hexafluoride

3. Water vapour

Which of the above contribute to the warming up of the atmosphere ?

(a) 1 and 2 only
(b) 2 and 3 only
(c) 3 only
(d) 1, 2 and 3
2347: After returning from South Africa, Gandhiji launched his first successful Satyagraha in

(a) Chauri-Chaura

(b) Dandi

(c) Champaran

(d) Bardoli
2348: Soft drinks such as colas contain significant quantities of

(a) caffeine
(b) nicotine
(c) tannin
(d) renin
2349: Where was the first conference of the Pugwash Conferences on Science and World Affairs held in the Year 1957 ?

(a) Nova Scotia (Canada)
(b) Nagasaki (Japan)
(c) Minnow brook (USA)
(d) Rhode Island (USA)
2350: The Chinese traveler Yuan Chwang (Hiuen Tsang) who visited India recorded the general conditions and culture of India at that time. In this context, which of the following statements is/are correct?

1. The roads and river-routes were completely immune from robbery.

2. As regards punishment for offences, ordeals by fire, water and poison were the instruments for determining the innocence or guilt of a person.

3. The tradesmen had to pay duties at ferries and barrier stations.

Select the correct answer using the codes given below.

(a) 1 only
(b) 1 and 3 only
(c) 2 and 3 only
(d) 1, 2 and 3