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 →
- If the Arctic ice is replaced with dense forest, which of the following situations may arise ?Asked in APSC CCE Prelims Exam 2013
- Which of the following is a potential tipping point of global climate change ?Asked in APPSC Group II Mains paper 2 2025
- Paddy fields are chief sources of which of the following greenhouse gases? (i) Methane (ii) Carbon dioxide (iii) Nitrous oxide (iv) Ozone Select the correct answer using the codes given below.Asked in APSC CCE Prelims Exam 2023
- The main component of greenhouse gases isAsked in BPSC Prelims Exam 64th
- Which gas contributes to global warming through its greenhouse effect?Asked in BPSC Prelims Exam 68th
- Which greenhouse gas has maximum average residence time in the atmosphere?Asked in UPSC CDS 1 2024
- The situation of global warming in atmosphere is developed due to increase in which gas ?Asked in CGPSC Prelims Exam 2012
- These days, the atmospheric concentration of CO₂ found in PPM is aboutAsked in CGPSC Prelims Exam 2012
- Which is not Green House Gas ?Asked in CGPSC Prelims Exam 2016
- What will be the decreasing order of the following which contribute to the 'Greenhouse effect'?Asked in CGPSC Prelims Exam 2020
- Which of the following is not a green house gas ?Asked in CGPSC Prelims Exam 2024 · UPSC NDA 2 2015
- Which one of the following greenhouse gases is the largest single contributor to anthropogenic radiative forcing?Asked in UPSC Geoscientist 2020
- Which one of the following is the main natural source of Methane?Asked in UPSC Geoscientist 2020
- Which one of the following important greenhouse gases is not considered to be largely changed in its amount due to human activities?Asked in UPSC Geoscientist 2022
- Which one of the following greenhouse gases is man-made?Asked in UPSC Geoscientist 2022
- Consider the following statements regarding nitrous oxide. 1. Being a short-lived greenhouse gas, it substantially contributes to global warming. 2. When it reaches the stratosphere, it reacts with ozone and depletes it, with an impact comparable to that of CFCs. Which of the above statement/s is/are correct?Asked in GPSC Prelims CSP 2 2024
- Which of the following are the sources of methane? 1. Biomass burning 2. Wastewater treatment 3. Coal mining 4. PermafrostAsked in GPSC Prelims CSP 2 2022
- Apart from carbon dioxide, which of the following gases also has a role in climate change ?Asked in HPPSC HPAS Prelims 2014
- Select the correct option from the codes given below about greenhouse gases from the following: i. Methane ii. Nitrogen iii. Nitrous oxide iv. Water vapours Code :Asked in HAS Prelims 2021
- Which of these are true about Hydrofluorocarbons (HFCs)?Asked in KPSC KAS Prelims 2015
- Which of the following gas has highest contribution in global warming ?Asked in MPPSC CS Prelims 2019
- Which of the following greenhouse gases is entirely produced by human activities ?Asked in MPSC CS Prelims 2018
- The effects of aerosols on climate is/are a. They directly reflect sunlight back to space. b. They indirectly make clouds brighter reflectors. c. Aerosols have a net cooling effect on climate systems. d. Human generated aerosols offset the impact of global warming to some extent. Which of the above effects is/are true ?Asked in MPSC CS Prelims 2019
- Besides Carbon Dioxide, which of the following gases also plays a role in climate change?Asked in HPPSC HPAS Prelims 2014
- Which one of the following is not a main greenhouse gas ?Asked in UPSC NDA 1 2023
