UGC NET Paper 1 — Environmental Science
887 questions across 12 years
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50 questions shown from 2022 in Pollution.
Why are the WHO guidelines on air pollution not binding on member states?
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...
Threshold concentration of identified pollutants
The measure adopted by the WHO to limit the air pollution is:
Setting a new standard of air quality in its updated guidelines
Dissolved Oxygen (DO) is important for
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...
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...
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...
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...
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...
Which of the following pesticides is expected to persist in the environment for longer period as compared to others?
According to Noise Pollution (Regulation and Control) Rules in India, noise (Leq) in educational institutions during night time (10pm-6am) must not exceed
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)...
At a typical urban site, the ground level ozone concentration would be maximum at what time of the day?
Which one among the following is not a unit of measurement of surface ozone?
Stable atmospheric conditions help in
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
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...
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...
Given below are two statements Statement I: Dioxins are chlorinated compounds. Statement II: Dioxins cause deaths of birds and other stray animals due to their widespread use as he...
Statement I: Dioxins are chlorinated compounds. Statement II: Widespread use of dioxins as herbicides and pesticides causes the death of birds and stray animals. Choose the correct...
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...
Environmental problems associated with soils are (A) Nutrient leaching (B) Metal contamination (C) Salinity and Alkalinity (D) Ozone depletion (E) Fine aerosols in ambient air Choo...
Arsenic pollution in ground water is due to
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...
Given below are two statements: Statement I : Natural erosion of the soil is gradual removal of the top soil by natural processes. Statement II : Accelerated erosion of the soil is...
Match List I with List II: List I Water Pollutant Type (A) Toxic Pollutant (B) Nontoxic Pollutant (C) Macroscopic Pollutant (D) Pathogenic Pollutant List II Example (I) Chlorine (I...
Match List I with List II: List I (A) Pathogens (B) Inorganic Chemicals (C) Organic Chemicals (D) Radioactive Material List II (I) Thorium (II) Plastics (III) Bacteria (IV) Heavy M...
Given below are two statements: Statement I: Classical smog is formed when oxides of nitrogen combine with particulate matter especially in summer season. Statement II: Classical s...
Indian National Ambient Air Quality standards stipulate the maximum permissible limit of annual mean concentration of PM2.5 to be
Chlorine in drinking water is used for (A) Disinfection (B) Removal of hardness (C) Odor treatment (D) turbidity control (E) Removal of iron and manganese Choose the correct answer...
Given below are two statements: Statement I : Volatile Organic Chemicals (VOCs) are among the most commonly found contaminants in ground water. Statement II : The concentration of...
Match List I with List II List I Hazardous Waste (A) F-list (B) K-list (C) P-list (D) U-list List II Explanation (I) Hazardous wastes from specific industrial processes (II) Discar...
Source of arsenic pollution in the ground water is
Which of the following pollutant causes aggravation of respiratory disease, and atmospheric discolouration?
Match List I with List II: List I Phenomena (A) Jhum Cultivation (B) Air Pollution (C) Water Pollution (D) Urbanization List II Impacts (I) Acid rain (II) Eutrophication (III) Heat...
Given below are two statements: Statement I: Aquatic weeds are fast growing weeds which can attain very high productivities when cultivated on nutrient rich waste water such as dom...
निम्नलिखित में से कौनसी अपशिष्ट पानी के शोधन की रासायनिक शोधन की प्रक्रिया है?
Given below are two statements: One is labelled as Assertion (A) and the other is labelled as Reason (R): Assertion (A): Soil Pollution due to detergents affects the root growth of...
Which of the following air pollutants is known to be a human carcinogen?
Assertion (A): Soil pollution caused by detergents affects the root development of plants and also reduces the development of microorganisms in the soil. Reason (R): The presence o...
Which one of the following is a chemical treatment process of waste water treatment?
Match List I with List II: List I E-Waste Components A. Mercury B. Poly Chlorinated Biphenyls (PCB)
Given below are two statements Statement I: Prolonged (chronic) exposure to high noise levels (90-110 dB) causes only a temporary shift in the hearing threshold of an exposed perso...
Examples of Persistent Organic Pollutants (POPs) are: (A) Dioxins (B) PAN (C) VOC (D) FURANS (E) PCB Choose the correct answer from the options given below :