Environment PYQs — UPSC Prelims

All 353 Environment Previous Year Questions for UPSC Prelims, with answers and explanations. Click any question for the full solution.

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Regarding Peacock tarantula (Gooty tarantula), consider the following statements : 1. It is an omnivorous crustacean. 2. Its natural habitat in India is only limited to some forest areas. 3. In its natural habitat, it is an arboreal species. Which of the statements given above is/are correct?
Consider the following statements : 1. Statement I: Circular economy reduces the emissions of greenhouse gases. 2. Statement II : Circular economy reduces the use of raw materials as inputs. 3. Statement III : Circular economy reduces wastage in the production process. Which one of the following is correct in respect of the above statements?
Consider the following statements : 1. Statement I: Studies indicate that carbon dioxide emissions from cement industry account for more than 5% of global carbon emissions. 2. Statement II : Silica-bearing clay is mixed with limestone while manufacturing cement. 3. Statement III : Limestone is converted into lime during clinker production for cement manufacturing. Which one of the following is correct in respect of the above statements?
Consider the following statements : 1. Statement I: At the 28th United Nations Climate Change Conference (COP28), India refrained from signing the 'Declaration on Climate and Health'. 2. Statement II : The COP28 Declaration on Climate and Health is a binding declaration; and if signed, it becomes mandatory to decarbonize health sector. 3. Statement III : If India's health sector is decarbonized, the resilience of its health-care system may be compromised. Which one of the following is correct in respect of the above statements?
Consider the following statements : 1. Statement I: Article 6 of the Paris Agreement on climate change is frequently discussed in global discussions on sustainable development and climate change. 2. Statement II: Article 6 of the Paris Agreement on climate change sets out the principles of carbon markets. 3. Statement III : Article 6 of the Paris Agreement on climate change intends to promote inter-country non-market strategies to reach their climate targets. Which one of the following is correct in respect of the above statements?
Consider the following statements : 1. Carbon dioxide (CO2) emissions in India are less than 0.5 t CO2/ capita. 2. In terms of CO2 emissions from fuel combustion, India ranks second in Asia-Pacific region. 3. Electricity and heat producers are the largest sources of CO2 emissions in India. Which of the statements given above is/are correct?
The World Bank warned that India could become one of the first places where wet-bulb temperatures routinely exceed 35 °C. Which of the following statements best reflect(s) the implication of the above-said report? 1. Peninsular India will most likely suffer from flooding, tropical cyclones and droughts. 2. The survival of animals including humans will be affected as shedding of their body heat through perspiration becomes difficult. Select the correct answer using the code given below.
Artificial way of causing rainfall to reduce air pollution makes use of
With reference to the planet Earth, consider the following statements : 1. Rain forests produce more oxygen than that produced by oceans. 2. Marine phytoplankton and photosynthetic bacteria produce about 50% of world's oxygen. 3. Well-oxygenated surface water contains several folds higher oxygen than that in atmospheric air. Which of the statements given above is/are correct?
Consider the following : 1. Cigarette butts 2. Eyeglass lenses 3. Car tyres How many of them contain plastic?

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Which one of the following organisms is likely to show the highest- concentration of DDT once it has been introduced into the ecosystem?

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