PYQ-2023-24
Q1. Which one of the species is an example of extinct species?
(A) Asiatic Cheetah
(B) Black Buck
(C) Crocodile
(D) Indian Wild Ass
Q2. Which one of the following term describes not only the physical space occupied by an organism, but also its functional role in the community of organisms?
(A) Ecotone
(B) Ecological niche
(C) Habitat
(D) Home range
Q3. In the grasslands, trees do not replace the grasses as a part of an ecological succession because of
(A) Insects and fungi
(B) Limited sunlight and paucity of nutrients
(C) Water limits and fire
(D) None of the above
Q4. With reference to the food chains in ecosystems, which of the following kinds of organism is / are known as decomposer organism/organisms?
1. Virus
2. Fungi
3. Bacteria
Select the correct answer using the codes given below.
(A) 1 only
(B) 2 and 3 only
(C) 1 and 3 only
(D) 1, 2 and 3
Q5. Which one of the following is the process involved in photosynthesis?
(A) Potential energy is released to form free energy
(B) Free energy is converted into potential energy and stored
(C) Food is oxidized to release carbon dioxide and water
(D) Oxygen is taken, and carbon dioxide and water vapour are given out
Q6. Consider the following:
1. Carbon dioxide
2. Oxides of Nitrogen
3. Oxides of Sulphur
Which of the above is/are the emission/ emissions from coal combustion at thermal power plants?
(A) 1 only
(B) 2 and 3 only
(C) 1 and 3 only
(D) 1, 2 and 3
Q7. Which of the following earthquake waves are more destructive at the epicenter?
(A) Swaves
(B) P waves
(C) Rwaves
(D) Lwaves
Q8. Jhumming cultivation is known as 'Kuruwa' in which region/state?
(A) Madhya Pradesh
(B) Andhra Pradesh
(C) North-eastern Region
(D) Jharkhand
Q9. Read the following statement given below and choose the correct alternative
Statement 1- Land degradation is caused due to soil erosion and waterlogging
Statement 2- Deforestation is the major cause of soil erosion
(A) Both are correct
(B) Both are incorrect
(C) Statement 1 is correct and statement 2 is incorrect
(D) Statement 1 is incorrect and statement 2 is correct
Q10. In which of the following years the 'Declaration of the Rights of the Child' was passed by UNO?
(A) 1949
(B) 1951
(C) 1956
(D) 1959
Q11. Land degradation in India happens at a very large scale", because
(A) Inadequate soil conservation measures
(B) Overgrazing
(C) Both (A) and (B)
(D) None of the above
Q12. "There is a huge loss of valuable nutrients and fertility in India". What are the reasons for this?
(A) Soil erosion
(B) Land degradation
(C) Water logging
(D) Air Pollution
Q13. Consider the following statements regarding an aquatic ecosystem:
(1) The shallow water zone around the edge of the lake is the littoral zone.
(2) Limnetic zone is the open zone where phytoplankton grows in abundance
(3) Profundal zone is the dark zone where the light cannot reach.
Which of the statements given above is/ are correct?
(A) 1 only
(B) 2 and 3only
(C) 1 and 3 only
(D) 1, 2 and 3
A14. Which of the following are primary pollutants?
(1) Carbon monoxide (CO)
(2) Sulphur oxides (SO)
(3) Volatile Organic Compounds (VOCs)
(4) Nitric Oxide (NO)
(5) CFC's
(6) Radioactive pollutants
Select the correct answer using the code given below
(A) 1, 2, 3 and 6 only
(B) 1, 2, 4 and 5 only
(C) 3, 4, 5 and 6 only
(D) 1, 2, 3, 4, 5 and 6
Q15. Consider the following statements:
(1) Meteorological Drought is based. on the impact of rainfall deficits on the water supply.
(2) Socioeconomic Drought refers to the impact of drought conditions on supply and demand of economic goods.
Which of the statements given above is/ are correct?
(A) 1 only
(B) 2 only
(C) Both 1 and 2
(D) Neither 1 nor 2
Q16. With reference to cloud seeding, consider the following statements:
(1) It is a weather modification technique that improves a cloud's ability to produce rain or snow by introducing tiny ice nuclei into certain types of subfreezing clouds.
(2) Aluminum hydroxide is the most common chemical used for cloud seeding.
Select the correct statement using the code given below:
(A) 1 only
(B) 2 only
(C) Both 1 and 2
(D) Neither 1 nor 2
Q17. National Air Quality Index (AQI) is launched by the government to monitor the quality of air in major urban centres across the country on a real-time basis and enhancing public awareness for taking mitigative action. In this context, consider the following statements:
(1) AQI will have ‘one number, one colour and one description' to inform the public about air quality in a simple and easily. understandable format
(2) There are six AQI categories, namely: good, satisfactory, moderately polluted, poor, very poor and severe
(3) The index considers eight pollutants PM10, PM2.5, NO2, SO2, CO, O3, NH, and Pb
Which of the statements given above are correct?
(A) 2 and 3 only
(B) 1 and 3 only
(C) 1 and 2 only
(D) 1, 2 and 3
Q18. Which of the following best describes the term Deep ecologism?
(A) A philosophy that believes in specific changes in daily lifestyle of humans to minimize the damage to the environment
(B) A philosophy that believes that humans should radically change their relationship with nature
(C) A set of sustainable practices to increase fish production in shallow ocean ecosystems
(D) None of the above
Q19. The ability of a population to increase under ideal environmental conditions is called
(A) Natality
(B) Carrying capacity
(C) Biotic potential
(D) Absolute natality
PYQ-2022-23
Q1. Gases that trap heat in the atmosphere and cause global warming are called greenhouse gases.
Which of the following combinations are not included under the greenhouse gases?
(A) Carbon dioxide, Methane
(B) Nitrous oxide, Hydrofluorocarbons
(C) Carbon monoxide, Sulphur dioxide
(D) Carbon dioxide, water vapour
Q2. More than 90 percent of all nitrogen are fixed as ammonia, nitrites, and nitrates by soil microorganisms. Symbiotic bacteria associated with leguminous plants fix nitrogen by the formation of root nodules. In which of the following plant nitrogen fixation does not occurs?
(A) Common Beans
(B) Soybeans
(C) Peanuts
(D) Oats
Q3. For protection of plants and animal species and to provide for the prevention and control of water pollution, air pollution and the environment, government of India has taken adequate steps and several prevention, control and protection Acts has been enacted. Which of the following combination of statements is correct?
(A) The Water (Prevention and Control of Pollution) Act, 1974
The Air (Prevention and Control of Pollution) Act, 1981
The Environment (Protection) Act, 1986
The Wild Life (Protection) Act, 1972
(B) The Water (Prevention and Control of Pollution) Act, 1972
The Air (Prevention and Control of Pollution) Act, 1981
The Environment (Protection) Act, 1986
The Wild Life (Protection) Act, 1974
(C) The Water (Prevention and Control of Pollution) Act, 1974
The Air (Prevention and Control of Pollution) Act, 1986
The Environment (Protection) Act, 1981
The Wild Life (Protection) Act, 1972
(D) The Water (Prevention and Control of Pollution) Act, 1981
The Air (Prevention and Control of Pollution) Act, 1974
The Environment (Protection) Act, 1986
The Wild Life (Protection) Act,1972
Q4. Government of Odisha has declared the following Biodiversity Heritage Sites (BHS) for the conservation of Biodiversity in the state.
Which of the following pairs (Name of the BHS and district) are not correct?
(A) Gandhamardan Hill Range: Bargarh and Balangir District
(B) Mandasaru Gorge: Kalahandi District
(C) Satkosia Gorge: Angul District
(D) Mahendragiri Hill range: Gajapati District
Q5. Acknowledging the years of efforts of tribal people in conserving 130 varieties of indigenous cultivars of rice, Koraput district was declared as a Globally Important Agricultural Heritage System.
Which one of the following pairs (Organisation: Year) is correct?
(A) Food and Agricultural Organization (FAO) of United Nations: 1982
(B) Food and Agricultural Organization (FAO) of United Nations: 1992
(C) Food and Agricultural Organization (FAO) of United Nations: 2002
(D) Food and Agricultural Organization (FAO) of United Nations: 2012
Q6. The Govt. of India had launched “Project Tiger", the largest species conservation initiative of its kind in the world on 1st April 1973 to promote conservation of the tiger. Nine tiger reserves were established in different states of India in the year 1973.
Which one of the following combinations does not include the Tiger Reserves established in the year 1973?
(A) Corbett Tiger Reserve, Similipal Tiger Reserve
(B) Dholpur-Karauli Tiger Reserve, Satkosia Tiger Reserve
(C) Manas Tiger Reserve, Sunderbans Tiger Reserve
(D) Ranthambore Tiger Reserve, Kanha Tiger Reserve
Q7. A marine protected area (MPA) is essentially a space in the ocean where human activities are strictly regulated and these places are given special protections for natural or historic marine resources by local, state, territorial, native, regional, or national authorities.
Which one of the following is not a MPA?
(A) Periyar in Kerala
(B) Bhitarkanika in Odisha
(C) Malvan Marine in Maharashtra
(D) Coringa in Andhra Pradesh
Q8. The United Nations Conference on Environment and Development (UNCED), also known as the 'Earth Summit', was held in Rio de Janeiro, Brazil, from 3-14 June 1992.
Which of the following combinations of statements about the conference is correct?
i. This global conference was held on the occasion of 20th anniversary of the first human environment conference held in Stockholm, Sweden
ii. It focused on the “impact of human socio-economic activities on the environment"
iii. Representatives from 79 countries participated in the conference
(A) i and ii
(B) i and iii
(C) ii and iii
(D) i, ii and iii
Q9. Microsoft, the recipient of UN Global Action Award, is now committing to remove from the environment all the carbon the company has emitted either directly or by electrical consumption since it was founded in 1975 by 2050. From which year the company has adapted to be carbon neutral?
(A) 2010
(B) 2012
(C) 2014
(D) 2016
Q10. World Environment Day is the United Nations Day for encouraging worldwide awareness and action to protect our environment. In 1972, the UN General Assembly designated 5 June as World Environment Day (WED). The first celebration, under the theme "Only One Earth" took place in 1973. Thereafter every year the day is celebrated with a theme.
Which of the following pairs (Year and Theme) is not correct?
i. 2023: "Solutions to Plastic Pollution"
ii. 2022: "Only one Earth"
iii. 2021: "Ecosystem Restoration"
iv. 2020: "Time for Environment"
(A) i
(B) i and ii
(C) ii and iii
(D) iv
PYQ-2021-22
Q1. On the ozone layer, the CFC has continuing their effects as :
(A) Reactions use up the Clatons formed by them leading to the degradation of ozone.
(B) Their efficient absorption by water vapours of the atmosphere.
(C) In reactions, the Cl atoms formed by them serve as catalysts leading to the degradation of ozone.
(D) They are constantly produced in increasing quantities, globally.
Q2. Identify the incorrect statement:
(A) Eutrophication is a naturalprocess seen in fresh water bodies.
(B) Greenhouse effect occurs naturally.
(C) In the upper part of the atmosphere, ozone causesharm to animals.
O) In tropical areas, most of the forests have been lost.
Q3. Name of the country which announced to change their capital due to sea level rise:
(A) Indonesia
(B) Maldives
(C) Vietnam
(D) Philippines
Q4. Indian Crocodile Conservation Project was started in which year?
(A) 1973
(B) 1975
(C) 1992
(D) 1999
Q5. According to the latest reports which city was World's Most Polluted Cities in 2021 ?
(A) Ghaziabad
(B) Bhiwadi
(C) Hotan
(D) Delhi
Q6. International Day for the Conservation of the Mangrove Ecosystem celebrated on which day?
(A) 23 July
(B) 2 June
(C) 21 March
(D) 2 February
Q7. Consider the following statements:
(i) Coal ash contains arsenic, lead and mercury.
(ii) Coal-fired power plants release sulphur dioxide and oxides of nitrogen into the environment.
(iii) High ash content is observed in Indian coal.
Which of the statements given above is/are correct?
(A) (i) only
(B) (ii) and (iii) only
(C) (i) and (iii)
(D) All of these
Q8. Which of the following are the key features of 'National Ganga River Basin Authority (NGRBA)'?
(i) River basin is the unit of planning and management.
(ii) It spearheads the river conservation efforts at the national level.
(iii) One of the Chief Ministers of the States through which the Ganga flows becomes the Chairman of NGRBA on rotation basis.
Select the correct answer using the code given below:
(A) (i) and (ii) only
(B) (ii) and (iii) only
(C) (i) and (iii) only
(D) All of these
Q9. In terms of efficiency, the most potent greenhouse gas is:
(A) N2O
(B) CH4
(C) C20
(D) CFC
Q10. According to Shelford's Law of Tolerance, the organisms wide environmental factor tolerance limit show:
(A) Narrow distribution with low population size
(B) Wide distribution with high population size
(C) Narrow distribution with high population size
(D) Wide distribution with low population size
PYQ-2015
Q1. Halophytes are the types of plants that prefer to grow on :·
(A) Dry soil
(B) Sandy soil
(C) Saline soil.
(D) Waterlogged soil
Q2. Thick vegetation of mangroves is present in:
(A) Western Ghats
(B) Sunderban
(C) Gir forest
(D) Himalayas
Q3. Broad leaved deciduous forests are typical of:
(A) Monsoon region
(B) Mediterranean region
(C) Temperate region
(D) Alpine region
Q4. Which of the following is mutually beneficial to the organisms in an association ?
(A) Parasitism
(B) Antagonism
(C) Neutralism
(D) Symbiosis
Q5. A thick and fleshy stem covered with a thick cuticle stores water in :
(A) Hydrilla
(B) Opuntia
(C) Tecoma
(D) Magnolia
Q6. The largest amount of freshwater of our planet is present in :
(A) Lakes and rivers
(B) Ground water
(C) Pond and wells
(D) Polar ice and glaciers
Q7. A habitat of long severe winters and few months of summer constituting the only growing season for plants are the characteristics of:
(A) Savannah ecosystem
(B) Tundra ecosystem
(C) Coniferous ecosystem
(D) Taiga ecosystem
Q8. The pyramid that always remains erect in a stable ecosystem with homeostasis is:
(A) Pyramid of biomass
(B) Pyramid of number
(C) Pyramid of energy
(D) Pyramid of population
Q9. The role of bacteria in an ecosystem is to :
(A) Recycle nutrients
(B) Immobilize nutrients
(C) Fix carbon for secondary production
(D) Supply organic carbon
Q10. The biochemical oxygen demand in water is enhanced by:
(A) Increase in load of organic matter
(B) Increase in dissolved nitrogen
(C) Increase in heavy metal content
(D) Dense population phytoplankton
Q11. Green plant commonly:
(A) Releases CO2 in day time and O2 in night
(B) Releases O2 in day time and CO2 in night time
(C) Releases both O2 and CO2 in day as well as night
(D) Releases both O2 and CO2 in day and only O2 in night
Q12. Which of the following constitute a food chain
(A) Grass, Pulses, Mango
(B) Grass, Goat, Human
(C) Grass, Goat, Cow
(D) Grass, Fish, Goat
Q13. Coal should be used judiciously because it causes:
(A) Air pollution
(B) Acid rain
(C) Global warming
(D) All of the above
Tags:
PYQ