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December 27, 2020 - Daily Quiz

Editorial analysis for UPSC Mains & Prelims relevance.

27 Dec 2020
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1. Biofuels are fuels extracted from plants and crops and these have various advantages. These include
  1. Increasing agricultural diversity.
  2. Reduced use of fertilizers.
  3. The renewable source of energy.
Select the correct answer using the codes given below. (a) 1 and 3 only (b) 3 only (c) 2 and 3 only (d) 1, 2 and 3 2. Leviathan is book written by: (a) Rousseau (b) Locke (c) Hobbes (d) None of these
3. Benito Mussolini was the originator of: (a) National Socialism (b) Guild Socialism (c) Fascism       (d) None of these 4. Alexander of Macedonia was student of: (a) Socrates (b) Plato (c) Aristotle       (d) None of these 5. Health problems associated with indoor air pollution in developing countries is most commonly associated with (a) chlorine gas released from tap water. (b) the use of biofuels for cooking and heating. (c) poor hygiene and sanitation inside the home. (d) the widespread use of pesticides to control disease vectors. ANSWERS 1. (b) Biofuels may lead to a monoculture where farmers will prefer cultivating such crops that can be used in making biofuels. Fertilizers used in such crops will only increase fertilizer use. Biofuels are renewable sources and this is their advantage compared to non-renewable fossil fuels. Use of Fertilizers: As biofuels are produced from crops and these crops need fertilizers to grow better. The downside of using fertilizers is that they can have harmful effects on the surrounding environment and may cause water pollution. Fertilizers contain nitrogen and phosphorus. They can be washed away from soil to a nearby lake, river or pond. Monoculture: Monoculture refers to practice of producing same crops year after year, rather than producing various crops through a farmer’s fields over time. While, this might be economically attractive for farmers but growing same crop every year may deprive the soil of nutrients that are put back into the soil through crop rotation. Farmers may be tempted to produce crops which are goof for biofuels. 2. (c)  3. (c)  4. (b)  5. (b) The majority of biofuel that is used for heating is substantial. As wood is the most practical method to heat, houses that use wood-burning stoves rather than gas or electricity. A blend of biodiesel will reduce the emission of both nitrogen and sulphur dioxide.  
POSTED ON 27-12-2020 BY ADMIN

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