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31. Recently, there was a growing awareness in our country about the importance of Himalayan nettle(Girardinia diversifolia) because it is found to be a sustainable source of
    (a) anti-malarial drug
    (b) biodiesel
    (c) pulp for paper industry
    (d) textile fibre

36. Consider the following pairs :
Sea Bordering country
1. Adriatic Sea -  Albania
2. Black Sea - Croatia
3. Caspian Sea - Kazakhstan
4. Mediterranean Sea -  Morocco
5. Red Sea -  Syria
Which of the pairs given above are correctly matched?
    (a) 1,2 and 4 only
   
(b) 1,3 and 4 only
    (c) 2 and 5 only
    (d) 1,2,3,4 and 5

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21. Which one the following group of a plant domesticated in the new world’ and introduced into the old world?
    (a) Tobaccos, cocoas, and rubber
   
(b) Tobacco cotton and rubbers
    (c) Cotton, coffee and sugarcane
    (d) Rubber coffee and wheat

UPSC Civil Services Preliminary Exam - 2019 : Answer Key


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39. In India, the use of carbofuran, methyl parathion phorate and triazophos is viewed with apprehension. These chemicals are used as
(a) pesticides in agriculture
(b) preservatives in processed foods
(c) fruit-ripening agents
(d) moisturising agents in cosmetics

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37. Among the following, which one of the following is the largest exporter of rice in the world in the last five years?
    (a) China
  
  (b) India
    (c) Myanmar
    (d) Vietnam

35. Consider the following:
       1. Carbon monoxide
       2. Methane
       3. Ozone
       4. Sulphur dioxide
Which of the above are released into the atmosphere due to the burning of crop/biomass residue?
    (a) 1 and 2 only
    (b) 2, 3 and 4 only
    (c) 1 and 4 only
    (d) 1,2,3 and 4

30. Why is there a great concern about the microbeads’ that are released into environment?
   
(a) They are considered harmful to marine ecosystem
    (b) They are considered to cause skin cancer in children
    (c) They are small enough to absorbed by crop plants in irrigated fields
    (d) They are often found to be used as food adulterants

29. Consider the following pairs :
Wildlife Naturally found in
1. Blue fined mahseer : Cauvery river
2. Irrawaddy dolphine : Chambhal river
3. Rusty spoted cates : Eastern ghats
Which one of the pair given above are correctly matched?
    (a) 1 and 2 only
    (b) 2 and 3 only
    (c) 1 and 3 only
    (d) 1, 2 and 3

27. Which one of the following are Agasthyamala biosphere reserve?
    (a) Neyyar , peppara and shendurney wildlife sanctuaries and kalakad mundanthurai tiger reserve
    (b) Mudumalai sathayamangalam and Wayanad wildlife sanctuaries and silent valley national park
    (c) Kaundinya gundla bhrameshwaram and papikonda wildlife sanctuaries and mukurthi national park
    (d) Kawal and Shree Venkateshwara wildlife sanctuaries; and nagarjunasagar-srisailam tiger reserve

32.For the measurement/estimation of which of the following are satellite images/remote sensing data used?
1. Chlorophyll content in the vegetation of a specific location
2. Greenhouse gas emissions from rice paddies of a specific location
3. Land surface temperatures of a specific location
Select the correct answer using the code given below:
    (a) 1 only
    (b) 2 and 3 only
    (c) 3 only

    (d) 1,2 and 3

28. Consider the following statements:
   1. Some spices of turtle are herbivores
   2. Some spices of fish are herbivores
   3. Some spices of marine mammals are herbivores
   4. Some spices of snakes are viviparous
Which of the statement given above are correct?
    (a) 1 and 3 only
    (b) 2, 3 and 4 only
    (c) 2 and 4 only
    (d) 1, 2, 3 and 4

40. Consider the following statements:
       1. Under Ramsar convention, it is mandatory on the part of the Government on India in protect and conserve all the wetlands in the territory of India
     2. The Wetlands ( Conservation and Management) Rules, 2010 were framed by the Government of India based on the recommendations of Ramsar convention.
     3. The Wetlands ( Conservation and Management) Rules, 2010 also encompass the drainage area or catchment regions of the wetlands as determined by the authority
Which of the statements given above is/are correct?
(a) 1 and 2 only
(b) 2 and 3 only
(c) 3 only
(d) 1,2 and 3

25. In the context of which of the following do some scientists suggest the use of cirrus cloud thinning technique and the injection of sulphate aerosol into stratosphere?
    (a) Creating the artificial rains in some regions
    (b) Reducing the frequency and intensity of tropical cyclones
    (c) Reducing the adverse effects of the solar wind on the earth
   
(d) Reducing the global warming

22. Consider the following statements:
          1. Asiatic lion naturally found in India only
          2. Double-humped camel is naturally found in India only
          3. One-horned rhinoceros is naturally found in India only
Which one of the statement given above is/are correct?
 
   (a) 1 only
    (b) 2 only
    (c) 1 and 3 only
    (d) 1, 2 and 3

34. Which of the following statements are correct about the deposits of methane hydrate?
1. Global warming might trigger the release of methane gas from these deposits
2. Large deposits of ‘methane hydrate’ are found in Arctic Tundra and under the seafloor.
3. Methane in atmosphere oxidizes to carbon dioxide after a decade or two.
Select the correct answer using the code given below:
    (a) 1 and 2 only
    (b) 2 and 3 only
    (c) 1 and 3 only
  
  (d) 1,2 and 3

24. In a given year in India, official poverty lines are higher in some states than in other because
    (a) Poverty rates vary from state to state
   
(b) Price levels vary from state to state
    (c) Gross state product varies from state to state
    (d) Quality of public distribution varies from state to state

38.   Consider the following Pairs :
Glacier               River
1. Bandarpunch : Yamuna
2. Bara Shigri : Chenab
3. Milam : Mandakini
4. Siachen : Nubra
5. Zemu : Manas
Which of the following pairs given above are correctly matched?
(a) 1,2 and 4
(b) 1,3 and 4
(c) 2 and 5
(d) 3 and 5

23. Consider the following pairs :
Famous place                   River
1. Pandharpur       : Chandrabhaga
2. Tiruchirapalli    : Cauvery
3. Hampi              : Malaprabha
Which of the pair given above are correctly matched
    (a) 1 and 2 only
    (b) 2 and 3 only
    (c) 1 and 3 only
    (d) 1, 2 and 3

26. In the context of which one of the following are the terms pyrolysis and plasma gasification mentioned?
    (a) Extraction of earth element
    (b) natural gas extractions technologies
    (c) Hydrogen fuel based automobiles
    (d) Waste to energy technologies


Refer to Test 19 Question 93 of our mock test which is a similar question on pyrolysis

 GS Paper 1 : Answer Key for Series A
 

33. Consider the following states :
1. Chattisgarh
2. Madhya Pradesh
3. Maharashtra
4. Odisha
With reference to the states mentioned above, in terms of percentage of forest cover to the total area of State, which one of the following is the correct ascending order?
    (a) 2-3-1-4
    (b) 2-3-4-1
    (c) 3-2-4-1
    (d) 3-2-1-4

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