241: Which of the following are some important pollutants released by steel industry in India?
1. Oxides of sulphur
2. Oxides of nitrogen
3. Carbon monoxide
4. Carbon dioxide
Select the correct answer using the code given below.
(a) 1, 3 and 4 only
(b) 2 and 3 only
(c) 1 and 4 only
(d) 1, 2, 3 and 4
242: A and B can do a piece of work in 4 days. If A can do it alone in 12 days, how much time B will take to finish it alone?
(a) 4 days
(b) 6 days
(c) 8 days
(d) 10 days
243: Doldrums refer to:
(a) A belt of calm and light variable winds near the equator
(b) A particular area in the centre of the Pacific Ocean
(c) The region of the upper atmosphere extending upward from the tropopause to about 20 kms. above the earth
(d) None of these
244: Which one of the following pairs is correctly matched ?
(a) Nawgaon : Maharashtra
(b) Palamau : Gujarat
(c) Gir : Madhya Pradesh
(d) Amravati : West Bengal
245: In the above figure, ABCD is a cyclic quadrilateral, AB = BC and angle BAC = 70°, then angle ADC is
(a) 40°
(b) 80°
(c) 110°
(d) 140°