1726: Acid rain is caused by the pollution of environment by
(a) carbon dioxide and nitrogen
(b) carbon monoxide and carbon dioxide
(c) ozone and carbon dioxide
(d) nitrous oxide and sulphur dioxide
1727: A redistribution of income in a country can be best brought about through
(a) progressive taxation combined with progressive expenditure
(b) progressive taxation combined with regressive expenditure
(c) regressive taxation combined with regressive expenditure
(d) regressive taxation combined with progressive expenditure
1728: Consider the following events in Indian Freedom Movement :
1. Singh Sabha Movement
2. Quit India Movement
3. Dandi March
4. Gurdwara Reform Movement
The correct chronological sequence of these events is
(a) 1, 4, 3, 2
(b) 4, 1, 2, 3
(c) 2, 3, 4, 1
(d) 3, 2, 1, 4
1729: A cloth is woven with white and violet colour threads alternatively for 2 cm in one direction and with white and grey colour threads for 2 cm in the perpendicular direction. Which of the following patterns would emerge?
(a) Squares of two colours
(b) Squares of three colours
(c) Squares of four colours
(d) Stripes of four colours
1730: Which one of the following is the most important reason for the establishment of the Vikram Sarabhai Space Centre at Thumba?
(a) The sea is near to the place in the East, West and South directions
(b) It is a place near to a city in India, which is nearest to the Geographic Equator
(c) It is situated on the Geomagnetic Equator
(d) Outer space near Thumba exhibits queer atmospheric phenomena