UGC NET Paper 1 — Environmental Science
887 questions across 12 years
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50 questions shown from 2022.
Given below are two statements: Statement I: Bio-magnification can occur due to consumption of fish by humans. Statement II: Bio-magnification is the tendency of harmful substances...
Statement I: Natural soil erosion is the gradual removal of topsoil by natural processes. Statement II: Accelerated soil erosion is caused by human activities. The rate of accelera...
Which of the following statements are true about the world's forests? (A) Forests act as huge carbon sinks. (B) Most of the world's forests are concentrated in the sub-tropical reg...
Why are the WHO guidelines on air pollution not binding on member states?
Threshold concentration of identified pollutants
Focus on all types of health risks
Setting a new standard of air quality in its updated guidelines
The measure adopted by the WHO to limit the air pollution is:
Incinerate plastic waste
Given below are two statements Statement I: Concentration of Volatile Organic Chemicals is generally 100-1000 times higher in surface water than underground water. Statement II: Th...
Given below are two statements: Statement I : Bioconcentration in humans can occur due to consumption of fish. Statement II : Bioconcentration is the tendency of hazardous substanc...
Which of the following are examples of secondary air pollutants? (A) Sulphate (B) Nitric Oxide (NO) (C) Photochemical smog (D) Peroxy Acetyl Nitrate (PAN) (E) Polycyclic Aromatic H...
1 mm layer of pure ozone gas around earth at normal temperature and pressure is equivalent to:
Identify the correct sequence of average noise levels in increasing order of their magnitude from different sources. (A) City street corner (B) Conversational speech (C) Highway (D...
Carbon monoxide pollution may cause loss of consciousness or death in the exposed individual. For such an an event to occur, the likely minimum percentage saturation level of carbo...
Which of the following are true about Joint Forest Management (JFM)? (A) Its concept was introduced through the Environment (Protection) Act, 1986 (B) It involves both state forest...
Which of the following pesticides is expected to persist in the environment for longer period as compared to others?
Geothermal field requires combination of following three conditions (A) A natural underground source of water (B) A mountain in the vicinity (C) An impermeable layer (D) A coal min...
Given below are two statements: One is labelled as Assertion (A) and the other is labelled as Reason (R): Assertion (A): Geothermal fluids are rich in salts and other contaminants...
Organochlorine pesticides such as DDT's human toxicity is comparatively lower. It is their impact on food chain that leads to acute human toxicity. Their properties that cause them...
According to Noise Pollution (Regulation and Control) Rules in India, noise (Leq) in educational institutions during night time (10pm-6am) must not exceed
Dissolved Oxygen (DO) is important for
The assessment of the life cycle of a product is mainly done keeping in mind:
Match List I with List II: List I (Pollutants) (A) Carbon monoxide (CO) (B) Nitrogen dioxide (NO2) (C) Volatile Organic Compounds (VOCs) (D) Ozone (O3) List II (Health Effects) (I)...
औद्योगिक काल से पहले से वातावरण में कार्बन डाइऑक्साइड सांद्रता में प्रतिशत वृद्धि लगभग है:
Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R. Assertion (A): Large scale dams also cause the Green House Gas emissions. Reas...
Which of the following pollutants is considered as surrogate for eye irritation?
Pyrolysis helps in addressing the Problem of 1. Air Pollution 2. Water Pollution 3. Municipal Solid Wastes 4. Electronic Wastes
Given below are two statements: Statement I : To qualify as a biodiversity hotspot. an area must have at least 15000 species of vascular plants. Statement II : To qualify as a biod...
The percentage increase in carbon dioxide concentration in atmosphere from pre-industrial times is approximately
Given below are two statements: Statement I: Ozone hole over the Antarctica was discovered in 1987 Statement II: The Montreal Protocol envisaged 50% reduction in the use of CFCs, i...
Which of the following are responsible for global cooling?
Arrange the following terms chronologically according to the time these were first introduced. (A) Principle of common but differentiated responsibility. (B) Sustainable Developmen...
At a typical urban site, the ground level ozone concentration would be maximum at what time of the day?
The only energy source which is not in anyway related to Sun is
Aeration process is efficiently used to remove
Match List I with List II: List I (A) Mist (B) Smoke (C) Fume (D) Smog List II (I) Aerosols consisting of solid particles (II) Aerosols produced by condensation of hot vapours of m...
Which one among the following is not a unit of measurement of surface ozone?
Stable atmospheric conditions help in
Match List I with List II: List I (Protocol/Summit) (A) Paris Agreement (B) Kyoto Protocol (C) Rio declaration (D) Montreal Protocol List II (Theme) (I) Emissions trading (II) Ozon...
Given below are two statements: One is labelled as Assertion (A) and the other is labeled as Reason (R). Assertion (A): Energy produced from biomass is considered 'carbon neutral'....
Given below are two statements: Statement (I): Atmospheric stability is important because it determines the ability of pollutants to disperse vertically in the atmosphere. Statemen...
Which of the following are Sustainable Development Goals (SDGs)?
Wind energy (A) is an intermittent energy (B) is extremely useful at remote and isolated places (C) does not depend upon weather (D) is a clean energy (E) does not have any environ...
Given below are two statements Statement I: Pesticides such as DDT are particularly disruptive to food chains. Statement II: Pesticides are very persistent and soluble in water. In...
Given below are two statements: One is labeled as Assertion A and the other is labeled as Reason R. Assertion A: Bottom ash generated into the boilers of the thermal power plants a...
The highest nonzero dose at which no toxic effect is observed in a study on animals is called
Arsenic pollution in ground water is due to
The period of Sendai framework for disaster risk reduction is 1. 2015 - 2030 2. 2020 - 2040 3. 2015 - 2025 4. 2020 - 2030
What is the correct order of Global Warming Potential (GWP) of following atmospheric chemical species? (A) Chlorofluro Carbon (CFC) (B) Methane (CH4) (C) Carbon dioxide (CO2) (D) N...