286: Which one of the following approaches comes under the category of biotechnology?
(a) Use of living organisms or substances obtained from them in industrial processes
(b) Modernizing the commercial industries to produce products for use in biological research
(c) Use of modern technology to investigate biological disorders
(d) Use of industrial technology to increase the biosphere
287: Among the following Mughal rulers who was the founder of Mansabdari System?
(a) Akbar
(b) Jahangir
(c) Shahjahan
(d) Aurangzeb
288: A community of people called Manganiyars is well-known for their
(a) martial arts in North-East India
(b) musical tradition in North- West India
(c) classical vocal music in South India
(d) pietra dura tradition in Central India
289: Where was the First Session of the Indian National Congress held in December 1885?
(a) Bombay
(b) Ahmedabad
(c) Calcutta
(d) Delhi
290: 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