Environment & Ecology PYQs

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1. Prelims 2021Q20Ecology & Ecosystems

   In the nature, which of the following is/are most likely to be found surviving on a surface without soil?

   1.Fern

   2.Lichen

   3.Moss

   4.Mushroom

   Select the correct answer using the code given below.

   a1 and 4 onlyb2 onlyc2 and 3d1, 3 and 4
2. Prelims 2021Q21Biodiversity & Species

   Which one of the following is used in preparing a natural mosquito repellent?

   aCongress grassbElephant grasscLemongrassdNut grass
3. Prelims 2021Q22Ecology & Ecosystems

   Consider the following kinds of organisms :

   1.Copepods

   2.Cyanobacteria

   3.Diatoms

   4.Foraminifera

   Which of the above are primary producers in the food chains of oceans?

   a1 and 2b2 and 3c3 and 4d1 and 4
4. Prelims 2021Q23Biodiversity & Species

   Consider the following animals :

   1.Hedgehog

   2.Marmot

   3.Pangolin To reduce the chance of being captured by predators, which of the above organisms rolls up/roll up and protects/protect its/their vulnerable parts?

   a1 and 2b2 onlyc3 onlyd1 and 3
5. Prelims 2021Q24Climate Change

   With reference to the ‘New York Declaration on Forests’, which of the following statements are correct?

   1.It was first endorsed at the United Nations Climate Summit in 2014.

   2.It endorses a global timeline to end the loss of forests.

   3.It is a legally binding international declaration.

   4.It is endorsed by governments, big companies and indigenous communities.

   5.India was one of the signatories at its inception.

   Select the correct answer using the code given below.

   a1, 2 and 4b1, 3 and 5c3 and 4d2 and 5
6. Prelims 2021Q25Environmental Pollution

   Magnetite particles, suspected to cause neurodegenerative problems, are generated as environmental pollutants from which of the following?

   1.Brakes of motor vehicles

   2.Engines of motor vehicles

   3.Microwave stoves within homes

   4.Power plants

   5.Telephone lines

   Select the correct answer using the code given below.

   a1, 2, 3 and 5 onlyb1, 2 and 4 onlyc3, 4 and 5 onlyd1, 2, 3, 4 and 5
7. Prelims 2021Q26Ecology & Ecosystems

   Which one of the following is a filter feeder?

   aCatfishbOctopuscOysterdPelican
8. Prelims 2021Q27Ecology & Ecosystems

   In case of which one of the following biogeochemical cycles, the weathering of rocks is the main source of release of nutrient to enter the cycle?

   aCarbon cyclebNitrogen cyclecPhosphorus cycledSulphur cycle
9. Prelims 2021Q28Ecology & Ecosystems

   Which of the following are detritivores?

   1.Earthworms

   2.Jellyfish

   3.Millipedes

   4.Seahorses

   5.Woodlice

   Select the correct answer using the code given below.

   a1, 2 and 4 onlyb2, 3, 4 and 5 onlyc1, 3 and 5 onlyd1, 2, 3, 4 and 5
10. Prelims 2021Q29Climate Change

    The ‘Common Carbon Metric’, supported by UNEP, has been developed for

    aassessing the carbon footprint of building operations around the worldbenabling commercial farming entities around the world to enter carbon emission tradingcenabling governments to assess the overall carbon footprint caused by their countriesdassessing the overall carbon footprint caused by the use of fossil fuels by the world in a unit time
11. Prelims 2021Q30Ecology & Ecosystems

    Which of the following have species that can establish symbiotic relationship with other organisms?

    1.Cnidarians

    2.Fungi

    3.Protozoa

    Select the correct answer using the code given below.

    a1 and 2 onlyb2 and 3 onlyc1 and 3 onlyd1, 2 and 3
12. Prelims 2021Q51Sustainable Agriculture & Development

    How is permaculture farming different from conventional chemical farming?

    1.Permaculture farming discourages monocultural practices but in conventional chemical farming, monoculture practices are predominant.

    2.Conventional chemical farming can cause increase in soil salinity but the occurrence of such phenomenon is not observed in permaculture farming.

    3.Conventional chemical farming is easily possible in semi-arid regions but permaculture farming is not so easily possible in such regions.

    4.Practice of mulching is very important in permaculture farming but not necessarily so in conventional chemical farming.

    Select the correct answer using the code given below.

    a1 and 3b1, 2 and 4c4 onlyd2 and 3
13. Prelims 2021Q59Sustainable Agriculture & Development

    In the context of India's preparation for Climate-Smart Agriculture, consider the following statements :

    1.The 'Climate-Smart Village' approach in India is a part of a project led by the Climate Change, Agriculture and Food Security (CCAFS), an international research programme.

    2.The project of CCAFS is carried out under Consultative Group on International Agricultural Research (CGIAR) headquartered in France.

    3.The International Crops Research Institute for the Semi-Arid Tropics (ICRISAT) in India is one of the CGIAR's research centres.

    Which of the statements given above are correct?

    a1 and 2 onlyb2 and 3 onlyc1 and 3 onlyd1, 2 and 3
14. Prelims 2021Q63Biodiversity & Species

    Consider the following statements :

    1.Moringa (drumstick tree) is a leguminous evergreen tree.

    2.Tamarind tree is endemic to South Asia.

    3.In India, most of the tamarind is collected as minor forest produce.

    4.India exports tamarind and seeds of moringa.

    5.Seeds of moringa and tamarind can be used in the production of biofuels.

    Which of the statements given above are correct?

    a1, 2, 4 and 5b3, 4 and 5c1, 3 and 4d1, 2, 3 and 5
15. Prelims 2021Q97Sustainable Agriculture & Development

    Consider the following statements :

    Statement 1 :

    The United Nations Capital Development Fund (UNCDF) and the Arbor Day Foundation have recently recognized Hyderabad as 2020 Tree City of the World.

    Statement 2 :

    Hyderabad was selected for the recognition for a year following its commitment to grow and maintain the urban forests.

    Which one of the following is correct in respect of the above statements?

    aBoth Statement 1 and Statement 2 are correct and Statement 2 is the correct explanation for Statement 1bBoth Statement 1 and Statement 2 are correct but Statement 2 is not the correct explanation for Statement 1cStatement 1 is correct but Statement 2 is not correctdStatement 1 is not correct but Statement 2 is correct
16. Prelims 2020Q48Environmental PollutionAnswer disputed

    Which of the following are the reasons/factors for exposure to benzene pollution ?

    1.Automobile exhaust

    2.Tobacco smoke

    3.Wood burning

    4.Using varnished wooden furniture

    5.Using products made of polyurethane

    Select the correct answer using the code given below :

    a1, 2 and 3 onlyb2 and 4 onlyc1, 3 and 4 onlyd1, 2, 3, 4 and 5
17. Prelims 2020Q72Biodiversity & Species

    With reference to Indian elephants, consider the following statements :

    1.The leader of an elephant group is a female.

    2.The maximum gestation period can be 22 months.

    3.An elephant can normally go on calving till the age of 40 years only.

    4.Among the States in India, the highest elephant population is in Kerala.

    Which of the statements given above is/are correct ?

    a1 and 2 onlyb2 and 4 onlyc3 onlyd1, 3 and 4 only
18. Prelims 2020Q73Protected Areas & Conservation

    Which of the following Protected Areas are located in Cauvery basin ?

    1.Nagarhole National Park

    2.Papikonda National Park

    3.Sathyamangalam Tiger Reserve

    4.Wayanad Wildlife Sanctuary

    Select the correct answer using the code given below :

    a1 and 2 onlyb3 and 4 onlyc1, 3 and 4 onlyd1, 2, 3 and 4
19. Prelims 2020Q74Biodiversity & Species

    With reference to India’s biodiversity, Ceylon frogmouth, Coppersmith barbet, Gray-chinned minivet and White-throated redstart are

    aBirdsbPrimatescReptilesdAmphibians
20. Prelims 2020Q75Protected Areas & Conservation

    Which one of the following protected areas is well-known for the conservation of a sub-species of the Indian swamp deer (Barasingha) that thrives well on hard ground and is exclusively graminivorous ?

    aKanha National ParkbManas National ParkcMudumalai Wildlife SanctuarydTal Chhapar Wildlife Sanctuary