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Cement industry emissions and manufacturing — UPSC Prelims PYQ 2025Jeevan Bisht2025 / Air Pollution / Environment / Pollution and Degradation / UPSC Prelims PYQs
Activated carbon uses and production — UPSC Prelims PYQ 2025Jeevan Bisht2025 / Environment / Pollution and Degradation / Water Pollution / UPSC Prelims PYQs
Items containing plastic: UPSC Prelims PYQ 2025 (cigarette butts, eyeglass lenses, car tyres)Jeevan Bisht2025 / Environment / Plastic Pollution / Pollution and Degradation / UPSC Prelims PYQs
Cloud seeding agents — UPSC Prelims PYQ 2025Jeevan Bisht2025 / Air Pollution / Environment / Pollution and Degradation / UPSC Prelims PYQs
PFAS persistence, occurrence and bioaccumulation — UPSC Prelims PYQ 2024Jeevan Bisht2024 / Environment / Pollution and Degradation / UPSC Prelims PYQs
UPSC Prelims PYQ 2024: Chewing gum pollution — plastic gum base?Jeevan Bisht2024 / Environment / Plastic Pollution / Pollution and Degradation / UPSC Prelims PYQs
UPSC Prelims PYQ 2024: Largest source of sulphur dioxide emissions (EPA)Jeevan Bisht2024 / Air Pollution / Environment / Pollution and Degradation / UPSC Prelims PYQs
Mercury pollution sources UPSC Prelims PYQ 2023Jeevan Bisht2023 / Environment / Pollution and Degradation / UPSC Prelims PYQs
Biofilters in Recirculating Aquaculture System — UPSC Prelims PYQ 2023Jeevan Bisht2023 / Environment / Pollution and Degradation / Water Pollution / UPSC Prelims PYQs
Causes of acid rain — UPSC Prelims PYQ 2022Jeevan Bisht2022 / Air Pollution / Environment / UPSC Prelims PYQs
Polyethylene terephthalate (PET) — UPSC Prelims PYQ 2022Jeevan Bisht2022 / Environment / Plastic Pollution / Pollution and Degradation / UPSC Prelims PYQs
WHO Air Quality Guidelines: PM and ozone facts | UPSC Prelims PYQ 2022Jeevan Bisht2022 / Air Pollution / Environment / Pollution and Degradation / UPSC Prelims PYQs
UPSC Prelims PYQ 2022: Which crop emits methane and nitrous oxide?Jeevan Bisht2022 / Air Pollution / Environment / Pollution and Degradation / UPSC Prelims PYQs
Triclosan presence in consumer products — UPSC Prelims PYQ 2021Jeevan Bisht2021 / Environment / Pollution and Degradation / UPSC Prelims PYQs
Bisphenol A (BPA) and polycarbonate plastics — UPSC Prelims PYQ 2021Jeevan Bisht2021 / Environment / Plastic Pollution / Pollution and Degradation / UPSC Prelims PYQs
Sources of magnetite particle pollution — UPSC Prelims PYQ 2021Jeevan Bisht2021 / Environment / Pollution and Degradation / UPSC Prelims PYQs
Furnace oil: properties and uses — UPSC Prelims PYQ 2021Jeevan Bisht2021 / Environment / Pollution and Degradation / UPSC Prelims PYQs
Concerns about copper smelting plants UPSC Prelims PYQ 2021Jeevan Bisht2021 / Environment / Pollution and Degradation / UPSC Prelims PYQs
R2 Code of Practices purpose UPSC Prelims PYQ 2021Jeevan Bisht2021 / Environment / Pollution and Degradation / UPSC Prelims PYQs
Coal ash and emissions; correctness of statements — UPSC Prelims PYQ 2020Jeevan Bisht2020 / Air Pollution / Environment / Pollution and Degradation / UPSC Prelims PYQs
Copper slag, cold-mix and geotextiles — UPSC Prelims PYQ 2020Jeevan Bisht2020 / Environment / Pollution and Degradation / UPSC Prelims PYQs
Sources of benzene exposure — UPSC Prelims PYQ 2020Jeevan Bisht2020 / Air Pollution / Environment / Pollution and Degradation / UPSC Prelims PYQs
Extended Producer Responsibility in India — UPSC Prelims PYQ 2019Jeevan Bisht2019 / Environment / Pollution and Degradation / Pollution Related Laws / UPSC Prelims PYQs
UPSC Prelims PYQ 2019: Solid Waste Management Rules, 2016 — Key ProvisionsJeevan Bisht2019 / Environment / Pollution and Degradation / Pollution Related Laws / UPSC Prelims PYQs
Emissions from burning crop/biomass residue — UPSC Prelims PYQ 2019Jeevan Bisht2019 / Air Pollution / Environment / Pollution and Degradation / UPSC Prelims PYQs
Concerns about microbeads — UPSC Prelims PYQ 2019Jeevan Bisht2019 / Environment / Plastic Pollution / Pollution and Degradation / UPSC Prelims PYQs
Pyrolysis and plasma gasification — UPSC Prelims PYQ 2018Jeevan Bisht2019 / Environment / Pollution and Degradation / UPSC Prelims PYQs
Consequences of heavy sand mining in riverbeds — UPSC Prelims PYQ 2018Jeevan Bisht2018 / Environment / Land Degradation / Pollution and Degradation / UPSC Prelims PYQs
Biological Oxygen Demand (BOD) — UPSC Prelims PYQ 2017Jeevan Bisht2017 / Environment / Pollution and Degradation / Water Pollution / UPSC Prelims PYQs
UPSC Prelims PYQ 2017: Advantages of Bioremediation TechniquesJeevan Bisht2017 / Environment / Pollution and Degradation / Water Pollution / UPSC Prelims PYQs
Air Quality Index Pollutants: UPSC Prelims PYQ 2016Jeevan Bisht2016 / Air Pollution / Environment / Pollution and Degradation / UPSC Prelims PYQs
UPSC Prelims PYQ 2015: Bio-toilets on Indian Railways — correctness of statementsJeevan Bisht2015 / Environment / Pollution and Degradation / Water Pollution / UPSC Prelims PYQs
Uses and composition of fly ash UPSC Prelims PYQ 2015Jeevan Bisht2015 / Air Pollution / Environment / Pollution and Degradation / UPSC Prelims PYQs
Concerns about Industrial Nanoparticles – UPSC Prelims PYQ 2014Jeevan Bisht2014 / Environment / Pollution and Degradation / UPSC Prelims PYQs
Concerns with the use of Brominated flame retardants – UPSC Prelims PYQ 2014PMF IAS2014 / Environment / Pollution and Degradation / UPSC Prelims PYQs
Pollutants from the steel industry — UPSC Prelims PYQ 2014Jeevan Bisht2014 / Air Pollution / Environment / Pollution and Degradation / UPSC Prelims PYQs
Photochemical smog components – UPSC Prelims PYQ 2013Jeevan Bisht2013 / Air Pollution / Environment / Pollution and Degradation / UPSC Prelims PYQs
Acid rain causes and pollutants — UPSC Prelims PYQ 2013Jeevan Bisht2013 / Air Pollution / Environment / Pollution and Degradation / UPSC Prelims PYQs
Toxics released from improper disposal of computers (e‑waste) — UPSC Prelims PYQ 2013Jeevan Bisht2013 / Environment / Pollution and Degradation / UPSC Prelims PYQs
Uses of contour bunding in soil conservation — UPSC Prelims PYQ 2013Jeevan Bisht2013 / Environment / Land Degradation / Pollution and Degradation / UPSC Prelims PYQs
Pollutants in drinking water (Arsenic, Fluoride, Uranium) — UPSC PYQ 2013Jeevan Bisht2013 / Environment / Pollution and Degradation / Water Pollution / UPSC Prelims PYQs
Ocean acidification: causes of concern — UPSC Prelims PYQ 2012PMF IAS2012 / Environment / Pollution and Degradation / Water Pollution / UPSC Prelims PYQs
Chlorofluorocarbons (CFCs): UPSC Prelims PYQ 2012PMF IAS2012 / Air Pollution / Environment / Pollution and Degradation / UPSC Prelims PYQs
Effects of salinization on irrigated land – UPSC Prelims PYQ 2011PMF IAS2011 / Environment / Land Degradation / Pollution and Degradation / UPSC Prelims PYQs
What is Oilzapper? — UPSC Prelims PYQ 2011PMF IAS2011 / Environment / Pollution and Degradation / Water Pollution / UPSC Prelims PYQs
UPSC Prelims PYQ 2011: Causes of harmful algal blooms in Indian seasPMF IAS2011 / Environment / Pollution and Degradation / Water Pollution / UPSC Prelims PYQs
Ozone Hole Formation in Antarctica — UPSC Prelims PYQ 2011PMF IAS2011 / Air Pollution / Environment / Pollution and Degradation / UPSC Prelims PYQs
Atmospheric warming contributors – UPSC Prelims PYQ 2010PMF IAS2010 / Air Pollution / Environment / Pollution and Degradation / UPSC Prelims PYQs
UPSC Prelims PYQ 2010: Why mercury is used in fluorescent lampsPMF IAS2010 / Environment / Pollution and Degradation / UPSC Prelims PYQs
UPSC Prelims PYQ 2010 — Soil conservation practices evaluatedPMF IAS2010 / Environment / Land Degradation / Pollution and Degradation / UPSC Prelims PYQs
