UPSC Previous Year Question

Consider the following statements: 1. Some mushrooms have medicinal properties. 2. Some mushrooms have psychoactive properties. 3. Some mushrooms have insecticidal properties 4. Some mushrooms have bioluminescent properties. How many of the above statements are correct? (a) Only one (b) Only two (c) Only three (d) All four Answer - D Tip Usually  statement  having Some are correct.  Tip Question asked in UPSC pre exam specially in environment is getting random or difficult becasue Indian forest service pre is clubbed together with upsc pre exam. So, do not worry about difficult pre question of environment because your competition will not be able to do it. Pleurotus/oyster mushroom possesses medicinal properties and health-promoting effects. So, 1 is correct. Psilocybin or magic mushrooms are naturally occurring and are consumed for their hallucinogenic effects.  So, 2 is correct. mushrooms have been found to contain insecticidal compound. So, 3 is correct. Some mush...

Which of the following organisms perform waggle dance for others of their kin to indicate the direction and the distance to a source of their food? (a) Butterflies (b) Dragonflies (c) Honeybees (d) Wasps Answer - C Analysis  Medium, Current affair  The honey bee dance – also known as the waggle dance, is a form of communication performed by worker honey bees to other members of the honey bee colony. 

 Consider the following fauna: 1. Lion-tailed Macaque 2. Malabar Civet 3. Sambar Deer How many of the above are generally nocturnal or most active after sunset? (a) Only one (b) Only two (c) All three (d) None Answer - B Difficult and factual question Tip  This sort of question can be done by doing the previous year question because these animals are asked in UPSC previous year question. lion-tailed macaque diurnal, meaning it is active exclusively in daylight hours. so, 1 is wrong. And 2 and 3 are correct because they are Diurnal.

Invasive species Specialist Group' (that develops Global Invasive Species Database) belongs to which one of the following organizations? (a) The International Union for Conservation of Nature (b) The United Nations Environment Programme (c) The United Nations World Commission for Environment and Development. (d) The World Wide Fund for Nature Answer - A  Analysis  Meidum, Current affair  Invasive Species Specialist Group (ISSG) is a global network of scientific and policy experts on invasive species, organized under Species Survival Commission (SSC) of the International Union for Conservation of Nature (IUCN).

Consider the following statements: Statement-I: Marsupials are not naturally found in India. Statement-II: Marsupials can thrive only in montane grasslands with no predators. Which one of the following is correct in respect of the above statements? (a) Both Statement-I and Statement-II are correct and Statement II is the correct explanation for Statement-I (b) Both Statement-I and Statement-II are correct and StatementII is not the correct explanation for Statement-I (c) Statement-I is correct but StatementII is incorrect (d) Statement-I is incorrect but Statement-II is correct Answer - C Analysis  Medium , Current affair  In April 2022, it was reported in many newspapers that Kangaroos (marsupials) are being smuggled into India. As you Know Kangaroos not natuarally found in India.  They are found in Australia, New Guinea, and neighbouring islands and are not restricted to montane grassland.

 Consider the following statements: Statement I: India, despite having uranium deposits, depends on coal for most of its electricity production. Statement II: Uranium, enriched to the extent of at least 60%, is required for the production of electricity. Which one of the following is correct in respect of the above statements? (a) Both Statement-I and Statement-II are correct and StatementII is the correct explanation for Statement-I (b) Both Statement-I and Statement-II are correct and StatementII is not the correct explanation for Statement-I (c) Statement I is correct but Statement II is incorrect (d) Statement I is incorrect but Statement II is correct Answer - C Analysis  Medium-level question, Current affair  Statement 1 is asked because - Huge deposits of Uranium were found in Rajasthan Statement 2 is asked because -  International Atomic Energy Agency (IAEA) has found 84% enriched uranium at Iran's nuclear site In India around 75% of the total power gene...

 Consider the following statements: Statement-I: The Supreme Court of India has held in some judgements that the reservation policies made under Article 16(4) of the Constitution of India would be limited by Article 335 for maintenance of efficiency of the administration. Statement-II: Article 335 of the Constitution of India defines the term 'efficiency of administration'. Which one of the following is correct in respect of the above statements? (a) Both Statements-I and Statement-II are correct and StatementII is the correct explanation for Statement-I (b) Both Statement-I and Statement-II are correct and StatementII is not the correct explanation for Statement-I (c) Statement-I is correct but StatementII is incorrect (d) Statement-I is incorrect but Statement-II is correct Solution  C Analysis  Medium, factual  Explanation M Nagaraj v Union of India 2006 — that the reservation policies made under Article 16(4) of the  Constitution would be limited by Article ...