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PYQ JKPSC Environmental Science Lecturer exams 2025

byEnvironmental Sciences •

 


Multiple-Choice Questions (MCQs)

1. Ecology and Biodiversity

  1. Which of the following is an example of an in-situ conservation strategy? a) Botanical Gardens b) Zoos c) National Parks d) Seed Banks Answer: c) National Parks

  2. The term "hotspots" in biodiversity refers to: a) Areas with high population density b) Regions with high endemic species and significant habitat loss c) Industrial zones with high pollution d) Areas with high temperature throughout the year Answer: b) Regions with high endemic species and significant habitat loss

  3. The concept of an "ecosystem" was first coined by: a) Ernst Haeckel b) A.G. Tansley c) Eugene P. Odum d) Charles Darwin Answer: b) A.G. Tansley

  4. Which of the following is considered a secondary consumer in a food chain? a) Grass b) Rabbit c) Lion d) Fox Answer: d) Fox (since a fox eats rabbits, which are primary consumers)

  5. The Hangul, or Kashmir Stag, is a critically endangered species found primarily in which national park? a) Hemis National Park b) Dachigam National Park c) Kaziranga National Park d) Periyar National Park Answer: b) Dachigam National Park

2. Environmental Pollution and Chemistry

  1. Photochemical smog is formed by the reaction of sunlight with: a) Carbon monoxide and sulfur dioxide b) Nitrogen oxides and volatile organic compounds (VOCs) c) Methane and carbon dioxide d) Chlorofluorocarbons (CFCs) and ozone Answer: b) Nitrogen oxides and volatile organic compounds (VOCs)

  2. Which of the following is a measure of the amount of dissolved oxygen needed by aerobic biological organisms to break down organic material present in a given water sample? a) COD (Chemical Oxygen Demand) b) BOD (Biochemical Oxygen Demand) c) TDS (Total Dissolved Solids) d) E.coli count Answer: b) BOD (Biochemical Oxygen Demand)

  3. The term "biomagnification" refers to: a) The breakdown of pollutants by microorganisms b) The increase in the concentration of a pollutant as it moves up the food chain c) The process of composting solid waste d) The formation of smog Answer: b) The increase in the concentration of a pollutant as it moves up the food chain

  4. Which layer of the atmosphere contains the majority of the ozone layer? a) Troposphere b) Stratosphere c) Mesosphere d) Thermosphere Answer: b) Stratosphere

  5. The 1986 Chernobyl disaster is a classic example of which type of pollution? a) Thermal pollution b) Noise pollution c) Radioactive pollution d) Soil pollution Answer: c) Radioactive pollution

3. Environmental Laws and Policies

  1. The Wildlife Protection Act in India was enacted in which year? a) 1972 b) 1986 c) 1995 d) 2002 Answer: a) 1972

  2. The Environmental (Protection) Act of India was passed following which international event? a) Kyoto Protocol b) Montreal Protocol c) Stockholm Conference d) Earth Summit Answer: c) Stockholm Conference (1972)

  3. What is the primary purpose of an Environmental Impact Assessment (EIA)? a) To monitor air quality in urban areas b) To assess the potential environmental effects of a proposed project c) To manage solid waste in a city d) To enforce noise pollution standards Answer: b) To assess the potential environmental effects of a proposed project

  4. The National Green Tribunal Act in India was established in which year for the effective and expeditious disposal of cases relating to environmental protection and conservation? a) 2005 b) 2010 c) 2014 d) 2018 Answer: b) 2010

4. Energy and Resources

  1. Which of the following is a non-renewable energy source? a) Solar b) Wind c) Geothermal d) Nuclear Answer: d) Nuclear (using uranium, a finite resource)

  2. The process of converting solid waste into energy through a controlled combustion process is known as: a) Composting b) Incineration c) Landfilling d) Bioremediation Answer: b) Incineration

  3. The use of Azolla as a biofertilizer is an example of which type of symbiotic relationship? a) Commensalism b) Parasitism c) Mutualism d) Amensalism Answer: c) Mutualism (Azolla hosts a nitrogen-fixing cyanobacterium)

5. Miscellaneous

  1. The Bhopal Gas Tragedy in 1984 was caused by the leakage of which toxic gas? a) Methyl Isocyanate b) Carbon Monoxide c) Sulfur Dioxide d) Methane Answer: a) Methyl Isocyanate

  2. Which of the following is considered a primary precursor of photochemical smog, not a secondary product? a) Ozone (O3​) b) Peroxyacetyl Nitrate (PAN) c) Nitrogen Oxides (NOx​) d) Aldehydes Answer: c) Nitrogen Oxides (NOx​)

  3. The primary cause of soil erosion in hilly areas is: a) Wind b) Water c) Deforestation d) Earthquakes Answer: c) Deforestation

This video covers key topics for the JKPSC Environmental Science exam, including seismology and soil profiles, which are part of the broader syllabus. Crack the JKPSC 10+2 Lecturer Environmental Science Exam with These Tips II Dr. Mukesh Goyal - YouTube
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