Environment and Ecology
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Environment and Ecology questions with answers

2,222 multiple-choice questions. Open any question for its answer and explanation.

Questions asked in State PSC and UPSC prelims, by topic. Each topic also has notes to read.

Read the notes: Greenhouse Effect and Climate Change →

  1. As compared to natural greenhouse effect, the enhanced greenhouse effect refers to increase in average surface temperature of the Earth due toAsked in UPSC Geoscientist 2022 · UPPCS Prelims 2015
  2. Read the following statements about the climate change. Identify the correct ones. 1. As per the latest report of IPCC, Climate Change is happening at a rapid pace. 2. The role of anthropogenic activities are extremely likely responsible for the climate change. 3. Change in Climate would promote insect-borne diseases and lead to shift in climatic boundaries.Asked in GPSC Prelims CSP 2 2023
  3. IPCC reports consistently indicate that climate change is occurring at an unprecedented and accelerating rate, making statement 1 correct. 2. The Intergovernmental Panel on Climate Change (IPCC) reports unequivocally state that human activities, primarily the emission of greenhouse gases, are the dominant cause of observed warming since the mid-20th century, making statement 2 correct. The language used in the latest reports is very strong ("unequivocal" or "extremely likely"). 3. Climate change is projected to alter temperature and precipitation patterns, which can expand the geographical range and seasonality of many disease vectors (like mosquitoes and ticks), thus potentially promoting insect-borne diseases (e.g., malaria, dengue). It also causes shifts in climatic zones and biomes, leading to shifts in climatic boundaries, making statement 3 correct. 3. At present which country is the maximum emitter of carbon dioxide ?Asked in HPPSC HPAS Prelims 2014
  4. Which country is currently the largest emitter of carbon dioxide?Asked in HPPSC HPAS Prelims 2014
  5. The impact of humans on global climate has been induced by which of the following ? a. Deforestation since 8000 years b. Use of fire and overgrazing c. Wet paddy cultivation since 5000 years d. Industrial revolutionAsked in MPSC CS Prelims 2018
  6. Which of the following are the primary causes of climate change? Excessive burning of fossil fuels Exploding numbers of automobiles driven by oil Increasing solar flares Heavy deforestation Select the correct answer using the code given below:Asked in UPPCS Prelims 2017
  7. Among the following crops, which one is the most important anthropogenic source of both methane and nitrous oxide ?Asked in UPSC IAS 2022
  8. "System of Rice Intensification" of cultivation, in which alternate wetting and drying of rice fields is practised, results in : Reduced seed requirement Reduced methane production Reduced electricity consumption Select the correct answer using the code given below :Asked in UPSC IAS 2022
  9. Climate change isAsked in UPSC SO Steno 2017
  10. Today the largest contributor to carbon dioxide (CO2) emissions isAsked in UPPCS Prelims 2010
  11. Assertion (A) : Organic farming reduces- the emission of greenhouse gases. Reason (R) : It releases in the absorption of CO2 in the soil. Select the correct answer from the codes given below:Asked in UPPSC Upper Mains 2009
  12. As per Emission Gap Report 2022, which among the following is the largest contributor of Green House Gases in 2020 ?Asked in Senior Physical Education Teacher Exam 2022
  13. Which country produces maximum greenhouse gas in the world?Asked in Assistant Programmer 2021
  14. Name of the gas which excites out from the ‘Paddy fields’, causing rise in earth’s temperature is :Asked in Draftsman Examination 2023
  15. What is 'Greenhouse Gas Protocol'?Asked in APSC CCE Prelims Exam 2023 · UPSC IAS 2016
  16. One carbon credit is accepted as equivalent toAsked in UPSC CDS 2 2017
  17. The use of carbon tax has been very successful to reduce emissions of greenhouse gases in :Asked in HPPSC HPAS Prelims 2016
  18. As per the World Resources Institute (2011) which of the following countries is the world's highest carbon emitter ?Asked in MPSC CS Prelims 2016
  19. What is carbon credit ?Asked in OPSC CS Prelims 2016
  20. The highest per capita emitter of carbon dioxide in the world is :Asked in OPSC CS Prelims 2016
  21. 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?Asked in OPSC CS Prelims 2022
  22. The total amount of green-house gases produced, to directly and indirectly support human activities, is referred to asAsked in RPSC RAS Prelims 2018
  23. One carbon credit is equivalent to :Asked in UKPSC CS Prelims 2012 · Government Polytechnic Exam 2012
  24. Which of the following countries was the largest emitter of CO2 in 2015?Asked in UPPCS Prelims 2018
  25. Consider the following statements: 1. Carbon markets are likely to be one of the most widespread tool in the fight against climate change. 2. Carbon markets transfer resources from the private sector to the State. Which of the statements given above is/are correct?Asked in UPSC CAPF 2010