1846: Why DDT is banned in western countries?

(a) It remains in environment for a long time

(b) The insects are immunised

(c) It is a highly poisonous insecticide

(d) None of the above
1847: Which one of the following is a very significant aspect of the Champaran Satyagraha?

(a) Active all-India participation of lawyers, students and women in the National Movement
(b) Active involvement of Dalit and Tribal communities of India in the National Movement
(c) Joining of peasant unrest to India's National Movement
(d) Drastic decrease in the cultivation of plantation crops and commercial crops
1848: Three flags, each of different colour, are available for a military exercise. Using these flags, different codes can be generated by waving

(i) Single flag of different colours, or
(ii) Any two flags in a different sequence of colours, or
(iii) Three flags in a different sequence of colour

The maximum number of codes that can be generated is
(a) 6
(b) 9
(c) 15
(d) 18
1849: Which one of the following is not a drug/pharma company?

(a) Chevron
(b) Pfizer
(c) Nicholas Piramal
(d) Zydus Cadila
1850: The average age of a cricket team reduces by 2 when two senior players aged 32 and 30 are replaced by 2 youngsters of equal age. What is the age of these new players?

(a) 20

(b) 22

(c) 24

(d) 26