1711 MCQs on NTA-NET (UGC-NET) Environmental Science (89) with Detailed Explanations & Solutions
🎯 1711 MCQs (& PYQs) with Full Explanations (2024-2025 Exam)
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1711 MCQs questions on NTA-NET (UGC-NET) Environmental Science (89) (explanations available on subscription). Practice topic-wise below (recommended), or across topics (start).
See: Flagged🏁 Skipped↷ Incorrect✗
Introduction of Environmental Science (141)
- Definition, Principles and Scope of Environmental Science (4)
- Earth, Man and Environment (8)
- Ecosystem (6)
- Physico-Chemical and Biological Factors in Environment (5)
- Geographical Classification and Zones (4)
- Structure and Composition of Atmosphere (19)
- Structure and Composition of Hydrosphere (5)
- Structure and Composition of Lithosphere (7)
- Structure and Composition of Biosphere (1)
- Mass and Energy Transfer Across the Various Interfaces (2)
- Material Balance (5)
- Laws of Thermodynamics (5)
- Heat Transfer Process (7)
- Scale of Meteorology (4)
- Pressure, Temperature, Precipitation, Humidity, Radiation and Wind (19)
- Atmospheric Stability (6)
- Inversions and Mixing Heights (5)
- Windroses (1)
- Natural Resources and Conservation (3)
- Sustainable Development (8)
- Meteorological Parameters (2)
- Biogeographic Provinces of the World (2)
- Remote Sensing and GIS (3)
- Digital Image Processing (1)
- Ground Truthing (1)
- Waste Management and Climate Change (5)
- Environmental Education and Awareness (3)
Fundamentals of Environmental Chemistry (62)
- Stochiometry (14)
- Gibbs Energy (2)
- Chemical Potential and Chemical Equilibria (3)
- Acid Base Reaction (6)
- Solubility Products, Solubilty of Gases in Water (12)
- Carbonate System (6)
- Unsaturated and Saturated Hydrocarbons (7)
- Radionuclides (2)
- Classification of Elements (5)
- Biogeochemical Cycles (5)
Chemical Composition of Air (68)
- Classification of Elements (2)
- Chemical Speciation (2)
- Particles, Ions and Radicals in the Atmosphere (17)
- Chemical Process to Form Inorganic and Organic Particulate Matter (2)
- Thermochemical and Photochemical Reactions in Atmosphere (11)
- Oxygen and Ozone Chemistry (14)
- Chemistry of Air Pollutants (13)
- Photochemical Smog (7)
Water Chemistry (37)
- Chemistry of Water (18)
- Concept of DO, BOD, COD (12)
- Coagulation (1)
- Filteration (4)
- Redox Potential (2)
Soil Chemistry (22)
StartToxic Chemicals in Environment (33)
- Pesticides in Water (9)
- Arsenic, Cadmium, Lead, Mercury, Ozone and PAN Pesticides (17)
- Insecticides (5)
- Carcinogens in Air (2)
Principles of Analytical Methods (23)
- Analytical Chemistry Basics and Titrimetry (2)
- Spectrophotometry (6)
- Chromatography (4)
- Gas Chromatography (1)
- Atomic Absorption Spectrophotometry (2)
- X - Ray Fluorescence, X - Ray Diffraction (2)
- Flame Photometry (3)
- FTIR (1)
- GC-MS (1)
- SEM (1)
Ecology and Evolution (18)
- Definition and Principles (4)
- Human Ecology and Human Settlement (3)
- Evolution (4)
- Origin of Life and Speciation (7)
Ecosystems (196)
- Structure and Functions (15)
- Abiotic and Biotic Components (5)
- Energy Flows (10)
- Food Chains (9)
- Food Web (2)
- Ecological Pyramids (1)
- Ecosystem Types and Diversity (16)
- Ecological Succession (13)
- Population (14)
- Community Ecology (14)
- Parasitism, Prey - Predator Relationships (6)
- Ecosystem Structure and Functions (4)
- Species Diversity (5)
- Concept of Ecotone (1)
- Edge Effects (1)
- Ecological Habitats and Niche (8)
- Ecosystem Stability and Factors Affecting Stability (4)
- Ecosystem Services (10)
- Basis of Ecosystem Classification (1)
- Types of Ecosystem (23)
- Biomes (7)
- Characteristics of Different Biomes (5)
- Population Ecology (22)
Endangered and Threatened Species (47)
StartBasics of Environmental Geosciences (160)
- Earth Systems and Biosphere (24)
- Earth's Processes and Geological Hazards (22)
- Mineral Resources and Environment (28)
- Water Resources and Environment (16)
- Landuse Planning (1)
- Environmental Geochemistry (6)
- Remote Sensing (20)
- Primary Geochemical Differentiation (2)
- Formation of Crust (1)
- Formation of Atmosphere (2)
- Controls on Formation of Landforms (9)
- Weathering (4)
- Soil Forming Minerals and Process of Soil Formation (4)
- Identification and Characterization of Clay Minerals (2)
- Soil Physical and Chemical Properties (7)
- Soil Types and Climate Control on Soil Formation (2)
- Abundance of Elements in Bulk Earth, Crust (3)
- Distribution of Water in Earth (1)
- Hydrology and Hydrogeology (2)
- Darcy's Law and Its Validity (3)
- Natural Hazards (1)
Energy Resources (167)
- Sun as Source of Energy (16)
- Fossil Fuels (20)
- Hydroelectric Power (8)
- Tidal Energy (10)
- Ocean Thermal Energy Conversion (4)
- Wind and Geothermal Energy (21)
- Solar Collectors (9)
- Photovoltaics and Solar Ponds (4)
- Nuclear Energy - Fission and Fusion (13)
- Magnetohydrodynamic Power (3)
- Bio-Energy (8)
- Anaerobic Digestion (1)
- Energy Use Patterns (3)
- Cabon Dioxide Emission (2)
- Global Warming (13)
- Air and Thermal Pollution (4)
- Radioactive Waste and Radioactivity from Nuclear Reactors (7)
- Exploitation of Solar Energy (8)
- Net-Calorific Value (1)
- Nuclear Energy (4)
- Nuclear Reactor (3)
- Radiative Forcing (5)
Air (99)
- Sources of Pollution (22)
- Primary and Secondary Pollutants (9)
- Transport and Diffusion of Pollutants (1)
- Gas Laws (5)
- Monitoring and Control of Air Pollution (11)
- Effect of Pollutants (9)
- Acid Rain (10)
- Air Quality Standards (5)
- Criteria Air Pollutants (1)
- Sampling and Monitoring of Air Pollutants (2)
- Principles and Instruments for Measurements (6)
- Indian National Ambient Air Quality Standards (4)
- Dispersion of Air Pollutants (6)
- Lapse Rates (2)
- Control Devices for Particulate Matter (3)
- Indoor Air Pollution (1)
- Control of Gaseous Pollutants (2)
Water (45)
- Types of Water Pollution (8)
- Sources and Consequences (3)
- Physico - Chemical and Bacteriological Sampling and Water Quality Analysis (1)
- Standards, Sewage and Waste Water Treatment and Recycling (4)
- Water Quality Standard (3)
- Impact on Humans, Plants and Animals (2)
- Measurement of Water Quality Parameters (8)
- Microbiological Analysis (1)
- Indian Standards for Drinking Water (4)
- Drinking Water Treatment (7)
- Wastewater Treatment (3)
- Common Effluent Treatment Plant (1)
Soil (28)
- Physico - Chemical as Bacteriological Sampling as Soil Quality Analysis (9)
- Soil Pollution Control (5)
- Soil Micro-Organisms and Functions (10)
- Insecticides (3)
- Fungicides and Weedicides (1)
Noise (24)
- Sources of Noise Pollution (2)
- Measurement of Noise and Indices (9)
- Noise Exposure Levels and Standards (3)
- Noise Control and Abatement Measures (4)
- Weighting Networks (2)
- Noise Dose (1)
- Noise Pollution Standards (1)
- Vibrations and Their Measurements (2)
Environment Impact Assessment (70)
- Introduction to EIA (15)
- Environmental Impact Statement and Environmental Management Plan (7)
- EIA Guidelines 1994 - Notification of Government of India (10)
- Impact Assessment Methodologies (9)
- Review Environmental Impact Analysis and Statement - Environmental Audit (3)
- Base Line Information and Predictions (4)
- Restoration and Rehabilitation Technologies (2)
- Rural Planning and Landuse Pattern (1)
- Sustainable Development (2)
- Cost-Benefit Analysis (2)
- Environmental Priorities in India (3)
- Procedure for Reviewing EIA of Developmental Projects (2)
- Life-Cycle Analysis (1)
- Environmental Management System Standards (2)
- EIA Notification, 2006 (6)
- Risk Assessment (1)
Solid Waste and Management (62)
- Sources and Generation of Solid Wastes (12)
- Chemical Composition and Classification (11)
- Disposal Methods and Management of Solid Wastes (22)
- Waste Minimization Technologies (4)
- Hazardous Wastes Management and Handling Rules, 1989 (2)
- Resource Management (2)
- Disaster Management and Risk Analysis (3)
- Solid Waste Components (3)
- Solid Waste Collection and Transportation (1)
- Electrical Energy Generation from Solid Waste (2)
Environmental Protection Act (84)
- International and National Efforts for Environment Protection (6)
- Provision of Constitution of India Regarding Environment (1)
- Legislation (2)
- Public Policy Strategies in Pollution Control (1)
- Wildlife Protection Act, 1972 Amended 1991 (9)
- Forest Conservation Act, 1980 (7)
- Indian Forests Act ( Revised ) 1982 (1)
- Air (Prevention and Control of Pollution) Act 1981 Amended 1987 (3)
- Water ( Prevention and Control of Pollution ) Act, 1974 Amended 1988 (5)
- Environment ( Protection ) Act, 1986 and Rules 1986 (12)
- Labelling Environmentally Friendly Products (Ecomark) (1)
- Public Liability Insurance Act, 1991 and Rules 1991 (6)
- Biological Diversity Act, 2002 (2)
- Hazardous & Other Waste (Management & Transboundary Movement) Rules, 2016 (5)
- Plastic Waste Management Rules, 2016 (1)
- Bio-Medical Waste Management Rules, 2016 (8)
- Solid Waste Management Rules, 2016 (6)
- Manufacture, Storage & Import of Hazardous Chemical (Amendment) Rules, 2000 (1)
- Noise Pollution (Regulation and Control) Rules, 2000 (1)
- Coastal Regulation Zones (CRZ) 1991 (3)
- National Forest Policy, 1988 (3)
Statistical Analysis (103)
- Basic Elements and Tools (10)
- Probability (8)
- Sampling (6)
- Measurement and Distribution of Attributes (8)
- Distribution-Normal, T and Poisson, and Binomial (14)
- Arithmetic, Geometric and Harmonic Means (13)
- Moments (2)
- Matrices (1)
- Tests of Hypothesis and Significance (18)
- Attributes and Variables (14)
- Correlation (1)
- Regression (7)
- Confidence Limits (1)
Environmental System Analysis (23)
- Introduction (4)
- Approaches to Development of Models (2)
- Linear Simple and Multiple Regression Models (1)
- Models of Population Growth and Interactions (6)
- Box Model (3)
- Gaussian Plume Model (7)
Environmental Awareness (134)
- Environmental Education and Awareness (26)
- Environmental Ethics and Global Imperatives (3)
- Ozone Depletion (19)
- Global Warming and Climatic Change (13)
- Current Environmental Issues in India (4)
- Narmada Dam (1)
- Tehri Dam (2)
- Soil Erosion (2)
- Formation and Reclamation of Usar (1)
- Alkaline and Saline Soil (2)
- Wastelands and Reclamation (2)
- Desertification and Control (3)
- Vehicular Pollution and Urban Air Quality (3)
- Biodiversity Conservation and Agenda - 21 (1)
- Waste Disposal, Recycling and Power Generation (2)
- Fly-Ash Utilization (1)
- Water Crises-Conservation of Water (2)
- Environmental Hazards (5)
- Eutrophication (3)
- Restoration of Indian Lakes (2)
- Rainwater Harvesting (3)
- Wetlands Conservation (3)
- National Action Plan on Climate Change (6)
- National River Conservation Plan (3)
- Climate Change (5)
- Forest Conservation (3)
- Wild Life Conservation Projects (3)
- Carbon Sequestration and Carbon Credits (2)
- Waste Management (2)
- Sustainable Habitat (5)
- Vehicular Emission Norms in India (2)
Environmental Biology (26)
StartEnvironmental Conventions and Agreements (21)
- Montreal Protocol, 1987 (2)
- Conference of Parties (Cops) (1)
- Basel Convention (1989, 1992) (6)
- Ramsar Convention on Wetlands (1971) (3)
- Earth Summit at Rio De Janeiro, 1992 (2)
- Global Environmental Facility (GEF) (1)
- UNFCCC, Kyoto Protocol, 1997 (3)
- UN Summit on Millennium Development Goals, 2000 (1)
- IPCC, UNEP, IGBP (4)