2721: If a tropical rain forest is removed, it does not regenerate quickly as compared to a tropical deciduous forest. This is because
(a) Propagules of the trees in a rain forest have poor viability
(b) The soil of rain forest is deficient in nutrients
(c) The rain forest species are slow growing
(d) Exotic species invade the fertile soil of rain forest
2722: Amongst the following States, which one has the highest percentage of rural population to its total population (on the basis of the Census, 2001) ?
(a) Uttar Pradesh
(b) Himachal Pradesh
(c) Bihar
(d) Orissa
2723: The heater element in an electric iron is made of:
(a) Nichrome
(b) Tungsten
(c) Copper
(d) Iron
2724: Which one of the following vitamins is considered to be a hormone ?
(a) A
(b) B
(c) C
(d) D
2725: Unemployment insurance will result in:
(a) Maintenance of consumption level
(b) Decrease in consumption level
(c) Decrease in savings
(d) Increase in savings