BEVAE-181 · December 2020 · English
IGNOU BEVAE-181 December 2020 Previous Year Question Paper
Ability Enhancement Compulsory Course On Environmental Studies
Structured previous year question paper for BEVAE-181, December 2020 session.
Max marks: 50 · Questions: 48
Verified: 29 Jul 2026
ABILITY ENHANCEMENT COMPULSORY COURSE ON
ENVIRONMENTAL STUDIES
Term-End Examination
February, 2021
Time : 2 hours Maximum Marks : 50
General Instructions :
(i) This is an objective type question paper. Options for the correct answer must be marked
only in the OMR sheet.
(ii) All questions are compulsory.
(iii) The question paper consists of 50 questions each of which carries one mark.
(iv) Each question has four alternatives, one of which is correct. Write the Sl. No. of your
correct alternative /answer below the corresponding question number in the OMR sheet
and then mark the rectangle for the same number in that column. If you find that none
of the given alternatives is correct, then write 0 and mark in column 0.
(v) Do not waste time in reading the whole question paper. Go on solving questions one by
one. You may come back to the left out questions, if you have time at the end.
BEVAE-181 1
Q1.In which of the following reports/books was ‘Sustainable Development’ formally defined for the first time ?
(1) Silent Spring
(2) The Limits to Growth
(3) Our Common Future
(4) Agenda
Q2.Which one of the following is not one of the seventeen Sustainable Development Goals adopted by UN ?
(1) No Poverty
(2) Zero Hunger
(3) Good Health and Well-being
(4) Tourism and Travel
Q3.Which one of the following is an example of human modified environment ?
(1) Artificial lakes
(2) Orchards
(3) Crop fields
(4) Dams
Q4.In which of the following do forests not play a significant role ?
(1) Soil formation
(2) Water conservation
(3) Regeneration of carbon dioxide
(4) Moderation of climate
Q5.Which one of the following regions covers more than 50% plant species in the world ?
(1) Tropical Rain Forests
(2) Tropical Deciduous Forests
(3) Temperate Evergreen Forests
(4) Temperate Deciduous Forests
Q6.Crown fire mostly takes place in which of the following forests ?
(1) Dense Forest
(2) Thorn Forest
(3) Savanna Forest
(4) Alpine Forest
Q7.Communities residing near waste disposal sites receiving less economic benefits than the communities generating the waste represents
(1) Economic Inequity
(2) Social Inequity
(3) Procedural Inequity
(4) Geographical Inequity
Q8.Which one of the following communities does not have a strong sense of stewardship ?
(1) Urban community
(2) Tribal community
(3) Traditional agricultural societies
(4) Pastoral community
Q9.Which of the following views considers nature as a mother and that she cannot be tamed ?
(1) European view
(2) Indian view
(3) Sineatic view
(4) North American view
Q10.The water cycle is driven by
(1) Global carbon cycle
(2) Sun
(3) Atmosphere
(4) Hydrogen
Q11.Chemosynthetic bacteria are
(1) Phagotrophs
(2) Saprotrophs
(3) Autotrophs
(4) Heterotrophs
Q12.Life does not exist beyond metres above mean sea level.
(1) 6000
(2) 7000
(3) 8000
(4) 9000 BEVAE-181 4
(1) 6000
(2) 7000
(3) 8000
(4)
Q13.In an ecosystem, the decomposition of organisms takes place by
(1) phagotrophs
(2) reducers
(3) primary consumers
(4) secondary consumers
Q14.The increase in population between 10,000 BC and about 1800 AD coincided with the
(1) growth in agriculture
(2) industrial revolution
(3) large scale immigration
(4) decrease in death rate
Q15.During the 14* century more than half the population of Europe and Asia was killed due to
(1) bubonic plague
(2) malaria
(3) the great fire
(4) the great earthquake
Q16.Which one of the following is not a genetic disease ?
(1) Haemophilia
(2) Sickle cell anemia
(3) Malaria
(4) Thalessemia
Q17.Match the types of environmental influences with their respective category. Environmental Influence Category
(a) Poison (@) Physical
(b) Noise
(ii) Sociological
(c) Overcrowding Gii) Biological
(d) Allergens
(iv) Chemical
(1) a-iii, b-ii, c-iv, d-i
(2) a-iv, b-i, c-ii, d-iii
(3) a-i, b-ii, c-iii, d-iv
(4) a-iv, b-iii, c-ii, d-i BEVAE-181 6 a-iii, b-ii, c-iv, d-i
(2) a-iv, b-i, c-ii, d-iii
(3) a-i, b-ii, c-iii, d-iv
(4) a-iv, b-iii, c-ii, d-i
Q18.Ina coniferous forest, the soil is
(1) rich in mineral nutrients
(2) acidic and mineral deficient
(3) basic and mineral deficient
(4) moderately basic and rich in mineral nutrients
Q19.The organisms which are attached to stems and leaves of rooted plants are known as
(1) neuston
(2) plankton
(3) periphyton
(4) nekton
Q20.In an ocean, the zone showing the maximum variability in terms of temperature, light, salinity and moisture is
(1) littoral zone
(2) pelagic zone
(3) benthic zone
(4) neritic zone
Q21.An estuary is a transitional zone representing
(1) avast area of saline water
(2) a large number of organisms
(3) great productivity built on a large base
(4) unique ecological features and biotic communities
Q22.Which of the following is a major cause of deforestation ?
(1) Forest fires
(2) Construction of dams
(3) Shifting cultivation
(4) Mining
Q23.Passenger pigeon is the perfect example of loss of species due to
(1) habitat destruction
(2) poisoning by pesticides
(3) impact of climate change
(4) selective destruction for food
Q24.The weed which causes enormous damage in fish and rice crop is
(1) Water hyacinth
(2) Congress weed
(3) Golden apple snail
(4) Mesquite
Q25.Artificial insemination has been useful for conservation of
(1) snakes
(2) lizards
(3) elephants
(4) ducks
Q26.Which one of the following is not a major characteristic feature of biodiversity hotspot ?
(1) Large number of species
(2) Abundance of endemic species
(3) Species under constant threat
(4) Large number of exotic species
Q27.Which one of the following areas in India is a hotspot of biodiversity ?
(1) Sundarbans
(2) Western Ghats
(3) Eastern Ghats
(4) Gangetic Plains
Q28.Which one of the following has the maximum genetic diversity in India ?
(1) Tea
(2) Teak
(3) Mango
(4) Wheat
Q29.Which of the following has maximum percentage of availability of water ?
(1) Rivers
(2) Lakes
(3) Atmospheric water
(4) Ground water
Q30.Among the ecosystems mentioned below, where can one find maximum biodiversity ?
(1) Mangroves
(2) Deserts
(3) Coral reefs
(4) Alpine meadows
Q31.How much water on the Earth is readily accessible for human use ?
Q32.The soil which is low in organic matter and has low fertility in India is
(1) Red soil
(2) Soil with loamy texture and dry composition
(3) Soil of desert region
(4) Soil of Himalayan region
Q33.Which of the following is no# a practice used to prevent soil erosion ?
(1) Bunding
(2) Kul
(3) Mulching
(4) Soil moisture conservation
Q34.Identify the conventional source of energy from the following :
(1) Biomass
(2) Geothermal
(3) Wind
(4) Atomic energy
Q35.A biomass gassifier converts
(1) _ solid fuel to gaseous fuel
(2) gaseous fuel to solid fuel
(3) liquid fuel to gaseous fuel
(4) gaseous fuel to liquid fuel BEVAE-181 12
(1) 05%
Q36.The most suitable fuel for a fuel cell is
(1) Water
(2) Nitrogen
(3) Hydrogen
(4) Carbon dioxide
Q37.The biophysical carrying capacity is population that can be supported by the resources of the planet at a given level of technology.
(1) the minimum
(2) the maximum
(3) all of the
(4) _ half of the
Q38.Which of the following is not a green house gas ?
(1) Carbon dioxide
(2) Methane
(3) Ozone
(4) Chlorine
Q39.Which of the following is not related to climate change ?
(1) UNFCC
(2) IPCC
(3) Kyoto Protocol
(4) Montreal Protocol
Q40.The ozone layer is present in which of the following ranges of the atmosphere ?
(1) 0-10km
(2) 15-50km
(3) 60-70km
(4) 65-90km BEVAE-181 14
(1) 0-10km
(2) 15-50km
(3) 60-70km
(4) 65-90km
Q41.The pH of rainfall was measured to be as per the following at four places A, B, C and D. Which place had the acid deposition ?
(1) A-55
(2) B-62
(3) C-65
(4) D
(69)
Q42.Which of the following chemicals is responsible for ozone depletion ?
(1) Sulphur oxides
(2) Carbon monoxide
(3) Chlorofluorocarbons
(4) Nitrogen oxide
Q43.Which of the following animals excretes very concentrated urine ?
(1) Camel
(2) Garden lizard
(3) Nocturnal Rodents
(4) Snakes
Q44.Which of the following is an example of non-point source of pollution ?
(1) Run-offs from agricultural fields
(2) Emissions from a power plant
(3) Discharge of effluent waste water from a factory
(4) Municipal waste water discharged in a river
Q45.When was The Air (Prevention and Control of Pollution) Act enacted ?
(1) 1974
(2) 1986
(3) 1981
(4) 1987 BEVAE-181 16
(3) 1-65
(4) 4-69
(1) Se
(1) 1974
(2) 1986
(3) 1981
(4)
Q46.The main objective of UNFCC relates to
(1) Green house gases
(2) Ozone depleting substances
(3) Biological diversity
(4) Chemical and Hazardous wastes
Q47.Which is not a waste minimisation method ?
(1) Process modification
(2) Waste concentration
(3) Waste segregation
(4) Landfill
Q48.Which is the best method for disposal of hospital and toxic wastes ?
(1) Incineration
(2) Dumping at sea
(3) Landfill
(4) Recycling
Q49.Which method is commonly used to assess the presence of organisms in a water body ?
(1) MPN
(2) DO
(3) TDS
(4) COD
Q50.NBA has been set up under the
(1) The Wildlife (Protection) Act
(2) The Forest (Conservation) Act
(3) The Biological Diversity Act
(4) The Environment (Protection) Act BEVAE-181 18
(1) MPN
(2) DO
(3) TDS
(4) CoD BEVAE-181 19 SPACE FOR ROUGH WORK