2341: 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
2342: Given below are colours of the visible spectrum. Identify the correct sequence in order of Increasing wavelengths.
(a) Red, Yellow, Blue, Violet
(b) Violet, Yellow, Blue, Red
(c) Blue, Yellow, Red, Violet
(d) Violet, Blue, Yellow, Red
2343: Which one of the following is the best description of the term 'ecosystem'?
(a) A community of organisms interacting with one another.
(b) That part of the Earth which is inhabited by living organisms.
(c) A community of organisms together with the environment in which they live
(d) The flora and fauna of a geographical area
2344: Laterite Soil is found in India in:
(a) Western Ghats
(b) Eastern Ghats
(c) Deccan Plateau
(d) Satpura region in Madhya Pradesh
2345: A trader fixed the price of an article in such a way that by giving a rebate of 10% on the price fixed he made a profit of 15%. If the cost of the article is Rs 72, the price fixed on it is
(a) Rs 82.80
(b) Rs 90.00
(c) Rs 92.00
(d) Rs 97.80