1866: Consider the following:
1. Electromagnetic radiation
2. Geothermal energy
3. Gravitational force
4. Plate movements
5. Rotation of the earth
6. Revolution of the earth
Which of the above are responsible for bringing dynamic changes in the surface of the earth?
(a) 1, 2, 3 and 4 only
(b) 1, 3, 5 and 6 only
(c) 2, 4, 5 and 6 only
(d) 1, 2, 3, 4, 5 and 6
1867: The growth rate of per capita income at current prices is higher than that of per capita income at constant prices, because the latter takes into account the rate of
(a) growth of population
(b) increase in price level
(c) growth of money supply
(d) increase in the wage rate
1868: There are more anti-bacterial drugs than anti-viral drugs because
(a) Bacterial diseases are intra-cellular.
(b) Viral diseases are intra-cellular.
(c) Virus are smaller than bacteria.
(d) Drugs can penetrate bacteria more effectively
1869: Which one of the following statements is correct?
(a) Liquid Sodium is employed as a coolant in nuclear reactors
(b) Calcium carbonate is an ingredient of toothpaste
(c) Bordeaux mixture consists of sodium sulphate and lime
(d) Zinc amalgams are used as a dental filling
1870: The Sultan of Delhi who is reputed to have built the biggest network of canals in India was
(a) Iltutmish
(b) Ghiyasuddin Tughlaq
(c) Feroz Shah Tughlaq
(d) Sikandar Lodi