4191: Which one of the following hormones contains iodine ?
(a) Thyroxine
(b) Testosterone
(c) Insulin
(d) Adrenaline
4192: Consider the following:
The arrival of Babur into India led to the
1. introduction of gunpowder in the subcontinent
2. introduction of the arch and dome in the region's architecture
3. establishment of Timurid dynasty in the region
Select the correct answer using the code given below.
(a) 1 and 2 only
(b) 3 only
(c) 1 and 3 only
(d) 1, 2 and 3
4193: When one enters a dark room, he is not able to see anything but after some time his vision improves. This is because:
(a) The retina of the eye comes forward
(b) The retina of the eye moves backward
(c) The pupil of the eye contracts
(d) The pupil of the eye dilates
4194: The Sixth and the Eighth Five-Year Plans covered the period 1980-85 and 1992-97 respectively. The Seventh Five-Year Plan covered the period
(a) 1987-92
(b) 1986-91
(c) 1985-90
(d) 1988-94
4195: According to Meadows (1972), if the present trends in world population, industrialisation, pollution, food production and resource depletion continue unchanged, the Limits to Growth on our planet will be reached in the next
(a) 50 years
(b) 100 years
(c) 150 years
(d) 200 years