UGC NET Paper 1 — Environmental Science
887 questions across 12 years
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49 questions shown from 2020.
Contamination of aquatic environment by Polychlorinated Biphenyls (PCBs) can originate from I. Sewage effluent II. Waste incinerators III. Toxic dumps IV. Thermal power plants V. T...
Formulation of long-term emission development strategies by each country was suggested under
Identify the correct sequence in increasing order of the carbon content per unit mass of the following reservoirs of carbon in terrestrial environment. (i) Plants (ii) Peat
Which of the International Agreements/Convention/Protocols are legally binding on to member countries (parties)? (i) Convention on Biological Diversity
Exposure to excessive noise pollution can cause: (i) Hearing impairment (ii) Insomnia (iii) Rise in blood pressure (iv) Respiratory disease (v) Reduced work efficiency
A measure such as building a plinth wall for floods would be termed as
Given below are some metals which are released into environment from a variety of anthropogenic sources. Identify the metals which have been of serious concern from the point of vi...
Which of the following countries has not signed/ratified the International Solar Alliance Framework Agreement?
At present, in India, the total installed renewable power capacity is accounted for by: (a) Solar Power (b) Wind Power (c) Hydropower (d) Urban and industrial waste to energy conve...
Given below are two Statements, one is labelled as Assertion A and other is labelled as Reason R. Assertion A: Carbon dioxide emissions from bioenergy production have traditionally...
From the following list, identify the Greenhouse Gases adopted in the Kyoto Protocol. (i) Carbon dioxide (ii) Methane (iii) Nitrous oxide (iv) Hydrofluorocarbons (v) Perfluorocarbo...
Given below are two statements, one is labelled as Assertion A and other is labelled as Reason R. Assertion A: Lakes are less prone to getting polluted than rivers. Reason R: Water...
Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R: Assertion A: Energy production from biomass has traditionally been considered...
The most relevant effect of particulate matter in air on human health is:
For wind power electricity generation which among the following type of rotors is most commonly used?
Climate pledges under Paris Agreement cover what fraction of greenhouse gas emissions reduction needed to limit the global warming below 2°C?
Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R. Assertion A: Long term low emission development strategies by each country are...
'Solar Water Still' is a device to:
Photochemical smog in urban areas is known to cause a) Respiratory effects b) Eye irritation c) Nose and throat irritation d) Carcinogenic effect e) Reduction in visibility Choose...
Which of the following statements about the Volatile Organic Compounds (VOCs) are correct? i) They cause acid rain ii) They may cause cancer iii) They play an important role in the...
Identify the correct sequence (decreasing order) of lifetimes of the following greenhouse gases in atmosphere: I. Methane II. Nitrous oxide III. Surface ozone IV. CFC-11 Choose the...
The impact of noise pollution on human health is governed by: (i) Intensity of noise (ii) Duration of noise (iii) Socio-economic status of an individual (iv) Sensitivity of human e...
Identify the primary air pollutant among the following:
Given below are two statements: Statement I: Chronic toxic effects result from single dose of very high toxic substance or continuous exposure of sub lethal dose Statement II: Acut...
Given below are two statements: Statement I: Sunlight is a pre-requisite for the formation of photochemical smog in urban areas. Statement II: Photochemical smog is a recurring phe...
Given below are two statements one is labelled as Assertion (A) and the other is labelled as Reason R): Assertion, A: It is crucial to sustain Himalayan ecosystem Reason, R: Himala...
Given below are two statements Statement I: Volatile Organic Chemicals (VOCs) are contaminants more commonly found in groundwater than in surface water. Statement II: VOCs are one...
In developing countries, the fraction of food waste in the composition of municipal solid waste is typically in the range
A dish solar cooker: (i) has reflecting material of anodized aluminum sheet. (ii) has a reflectivity of less than 50%. (iii) needs to track the sun to deliver power of about 0.6 kW...
Polar Stratospheric Clouds are associated with which of the following environmental issues?
The contribution of renewable energy sources including large hydropower projects in the total installed electric power capacity of India at present (June 2019) is approximately
Which of the following was the central aim of the Paris Agreement?
Which of the following is NOT one of the Missions under National Action Plan on Climate Change?
Given below are 2 Statements: Statement I: Long stretches of major rivers of India have very low Biochemical Oxygen Demand (BOD) values. Statement II: In rivers, oxygen is added in...
Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R: Assertion A: Global warming potential of a molecule of a greenhouse gas over d...
Identify the correct sequence of continents in decreasing order of their yearly carbon dioxide emissions, at present A. Africa B. Asia C. Europe D. North America Choose the correct...
The underlying purpose of environmental education is to: (i) Adjust to environmental challenges (ii) Help face environmental hazards (iii) Promote individual's critical-thinking ab...
The Global emissions (by weight) of the following Primary pollutants from natural sources are maximum in case of
Identify the correct sequence of countries in decreasing order of their contribution to global carbon dioxide emissions: A. USA B. China C. Russia D. India E. Japan Choose the corr...
Noise pollution measured in decibels (dB) with reference to a standard sound intensity of the following magnitude
In a polluted urban area, which one of the following has the highest concentration (ppm) in photochemical smog?
Match List I and List II which contains water pollutants and sources respectively List I Water pollutants A. Oxygen Demanding Wastes B. Plant Nutrient C. Acids D. Polychlorinated b...
Given below are two statements, one is labelled as Assertion A and other is labelled as Reason R. Assertion A: Global emissions of carbon dioxide stagnated during the years 2014-20...
In case of which of the following primary pollutants, the man-made contributions to global emissions (million tonnes per year) is more compared to that from natural sources?
Match List I with List List I Environmental Protocol/Agreement/Action Plan Montreal Protocol Paris Agreement Climate Action Plan Kyoto Protocol List II Provisions I. Integrated wat...
From disaster mitigation measures given below, identify the measures which can be characterized as non-structural: A. Flood dykes B. Land-use zoning C. Raising of homes in flood-pr...
The fast paced dwindling of certain unique species of birds can be seen:
What is one of the positive signs in view of these concerns?
The message flowing from the passage is that: