CSE-2011 Prelims practice

61) Biodiverstiy forms the basis for human existence in the following ways :

1. Soil formation
2. Prevention of soil erosion.
3. Recycling of waste
4. Pollination of crops

Select the correct answer using thew codes given below :

62) Aspartame is an artificial sweetener sold in the market. It consists of amino acids and provides calories like other amino acids. Yet, it is used as a low-calorie sweetening agent in food items. What is the basis of this use ?
63) What was the purpose with which Sir William Wedderburn and W.S.Caine had set up the Indian Parliamentary Committee in 1893?
64) What is the difference between a CFL and an LED lamp ?

1. To produce light, a CFL uses mercury vapour and phosphor while an LED lamp uses semi-conductor material.
2. The average life span of a CFL is much longer than that of an LED lamp.
3. A CFL is less energy-efficient is compared to an LED lamp.

Which of the statements given above is/are correct?

65) Recently “oilzapper” was in the news. What is it ?

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