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Answers 68-85 - Mock prelims test
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This lesson covers the answers of questions 68 to 85 and techniques to solve them.

Rangarajan Ramakrishnan
IAS 2005 batch (AIR 46), Chartered Accountant and Cost accountant, Teaching Polity at Officers IAS Academy at Chennai.

Unacademy user
awesome course sir. you are awesome teacher on unacademy. Happy teacher day sir.
Sir For Question 74 - PIB states - Madhya Pradesh has the largest forest cover of 77, 462 sq km in the country, followed by Arunachal Pradesh, with a forest cover of 67, 248 sq km and Chhattisgarh – 55, 586 sq km.
Gautam Kumar
3 years ago
Yeah ,answer should be 2,1,3 because question is asking to mark in ascending order.
Q 74 : None of the options given are correct. Ans : 2,1,3
Q 85 : "elements" instead of "minerals".
please continue the series Sir,with an another mock test. Thanks a lot!
very helpful sir as we all could not afford coaching
  1. UPSC Prelims Mock Test series -1 Answers 68 - 85

  2. 2 Presented by me Rangarajan IAS of 2005 batch-AIR 46th rank Associate Director at Officers IAS academy Pl visit for online test series - in line with Prelims expectations from Jan 17 - June 17 Follow me at

  3. 3 68.Which among the following are India's Biosphere Reserves listed by UNESCO? 1) Similipal 2) Nokrek 3) Nilgiri 4) Sunderbans a) 1,2 and 4 only c) 1,3 and 4 only b) 2,3 and 4 only d) All the above

  4. 4 69.Which among the following are corals? 1) Sea fans 2) Gorgonians 3) Zooxanthellae a) 1 and 2 only b) 2 and 3 only c) 1 and 3 only d) All the above Explanation: corals are living animal. It has symbiotic relationship. Sea fans, gorgonians are the type of corals and zooxanthellae are microscopic algae which live on coral.

  5. 5 70.Which of the following are sources of methane gas? i) Domestic animals ii) Coal mining iii) Wetlands a) i and 11 only c) i, ii and iii b) ii and ii only d) ii only Explanation: Domestic animals, coal mining and wetlands produce methane gas

  6. 6 71.Which of the following mammals are found in Western Ghats? 1) Lion tail Macaque 2) Cheetah 3) Royal Bengal tiger a) 1 and 2 only b) 1 and 3 only d) 1,2 and 3 c) 1 only Explanation: Cheetahs are extinct in India

  7. 7 72.Which of the following is likely to happen when oceans absorb more CO2? 1) Ocean acidification. 2) Decrease in coral reef. 3) Decrease in sea grass. a) 1 and 2 only b) 1 and 3 only c) 1,2 and 3 d) None of these Explanation: when ocean absorbs more carbon dioxide sea grass may grow since they require C02 to live just like plants on land.

  8. 8 73. Recently the Agasthiyamalai Biosphere Reserve has been included in the UNESCO's World Network of Biosphere Reserve, the Biosphere Reserve spreads through which of the following states? 1) Tamil nadu 2) Karnataka 3) Andra Pradesh 4) Kerala b) 2 and 3 only d) 1,3 and 4 only a) 1, 2 and 4 only C) 1 and 4 only

  9. 9 74 Arrange the states in ascending order regarding their forest cover in India according to the Indian state of Forest Report 2015. 1) Arunachal Pradesh 2) Chhattisgarh 3) Madhya Pradesh a) 1.2 and 3 c) 3,1 and 2 only b) 3,2 and 1 only d) 2,3 and 1 only C

  10. 10 75.The genetic engineering appraisal committee is constituted under the a) Food Safety and Standards Act, 2006 b) Geographical Indications of Goods (Registration and Protection) Act, 1999 c) Environment (Protection) Act, 1986 d) Wildlife (Protection) Act, 1972

  11. 14 a 79.The "Vienna convention" related with environment is basically related with a) International trade in endangered species b) Protection of ozone layer c) Biodiversity conservation d) Preservation of cultural environment Explanation: The Vienna Convention for the Protection of the Ozone Layer is a Multilateral Environmental Agreement. It was agreed upon at the Vienna Conference of 1985 and entered into force in 1988

  12. 16 81. In which of the following state the people mainly depends on Jhum cultivation for agriculture? a. Andhra Pradesh b. Arunachal Pradesh c. Madhya Pradesh d. Bihar

  13. 17 82. Arrange the following seas in the correct order from north to south 1) Yellow sea 3) Selebes sea c) 2,1 and 3 only 2) Sea of Japan b) 1,2 and3 d) 3,1 and 2 only a) 1.3 and 2 only

  14. 18 83. Consider the following 1) It has deciduous trees in local lands and conifers in uplands. 2) It has distributed rainfall throughout the year and 3) It receives frequent cyclones in summer 4) It receives comparatively more rainfall than other warm temperate regions Which of the following region has the above characteristics? a) California c) Ukraine Explanation: The China type climate or Natal type has the above characteristics. California has Mediterranean climate and Ukraine has steppe climate b) China d) None of the above

  15. 19 84, Which of the following has the highest albedo value? a) Earth b) Mercury d) Mars c) Venus Explanation: The fraction of incoming light is reflected by anybody is called albedo. The surface of Venus is completely obscured by atmospheric clouds that blanket the planet which reflect vast majority of light. The Mars, Earth and Mercury has low albedo because its dark nature of atmosphere.

  16. 20 85, Which among the following minerals are abundantly present in Earth crust? a) Silicon c)Iron b) Aluminium d) Magnesium Explanation: Earth crust consists of oxygen-46%, Silicon-27%, Aluminium 8%, Iron-5%, calcium-3%, sodium-2%, potassium-2%, Magnesium-296, others-196.