Q102. Consider the following statements: 1. Agricultural soils release nitrogen oxides into the environment. 2. Cattle release ammonia into the environment. 3. Poultry industry releases reactive nitrogen compounds into the environment. Which of the statements given above is/are correct?

Which of the following adds nitrogen to the soil? (2013) 1. Excretion of urea by animals 2. Burning of coal by man 3. Death of vegetation Select the correct ans

What can be the impact of excessive/inappropriate use of nitrogenous fertilizers in agriculture? 1. Proliferation of nitrogen fixing microorganisms in soil can

Due to their extensive rice cultivation, some regions may be contributing to global warming. To what possible reason/ reasons is this attributable? 1. The anaer

Consider the following statements: 1. Coal ash contains arsenic, lead and mercury. 2. Coal-fired power plants release sulphur dioxide and oxides of nitrogen int

Consider the following: 1. Carbon dioxide 2. Oxides of Nitrogen 3. Oxides of Sulphur Which of the above is/are the emission/emissions from coal combustion at th

What is the use of biochar in farming? 1. Biochar can be used as a part of the growing medium in vertical farming. 2. When biochar is a part of the growing medi

With reference to agricultural soils, consider the following statements: 1. A high content of organic matter in soil drastically reduces its water holding capa

Due to their extensive rice cultivation, some regions may be contributing to global warming. To what possible reason/ reasons is this attributable? 1. The anaer

With reference to chemical fertilisers in India, consider the following statements: 1. At present, the retail price of chemical fertilisers is market-driven and

Which of the following statements are correct about the deposits of ‘methane hydrate’? 1. Global warming might trigger the release of methane gas from these dep

Consider the following: 1. Oxides of Hydrogen 2. Oxides of Nitrogen 3. Oxides of Sulphur Which of the above causes/cause acid rain?

Consider the following pairs: Terms sometimes seen in the news: Their origin 1. Annex-I Countries: Cartagena Protocol 2. Certified Emissions Reductions: Nagoya

Consider the following statements: The nation-wide ‘Soil Health Card Scheme’ aims at: 1. Expanding the cultivable area under irrigation. 2. Enabling the banks t

What is/are the advantage/ advantages of zero tillage in agriculture? 1. Sowing of wheat is possible without burning the residue of the previous crop. 2. Withou

With reference to perfluoroalkyl and polyfluoroalkyl substances (PFAS) that are used in making many consumer products, consider the following statements: 1. PF

With reference to furnace oil, consider the following statements: 1. It is a product of oil refineries. 2. Some industries use it to generate power. 3. Its use

Consider the following statements: 1. Kyoto protocol came into force in the year 2005. 2. Kyoto protocol deals primarily with the depletion of the ozone layer.

With reference to the role of biofilters in Recirculating Aquaculture System, consider the following statements: 1. Biofilters provide waste treatment by removi

Microbial fuel cells are considered a source of sustainable energy. Why? 1. They use living organisms as catalysts to generate electricity from certain substrat

In the context of mitigating the impending global warming due to anthropogenic emissions of carbon dioxide, which of the following can be potential sites for ca

Consider the following crops of India: 1. Cowpea 2. Green gram 3. Pigeon pea Which of the above is/are used as pulse, fodder and green manure?

For the measurement/ estimation of which of the following are satellite images/remote sensing data used? 1. Chlorophyll content in the vegetation of a specific

Consider the following agricultural practices: 1. Contour bunding 2. Relay cropping 3. Zero tillage In the context of global climate change, which of the abov

There is some concern regarding the nanoparticles of some chemical elements that are used by the industry in the manufacture of various products. Why? 1. They c

Consider the following which can be found in the ambient atmosphere: 1. Soot 2. Sulphur hexafluoride 3. Water vapour Which of the above contribute to the warmi

Consider the following: 1. Carbon monoxide 2. Methane 3. Ozone 4. Sulphur dioxide Which of the above are released into the atmosphere due to the burning of crop

With reference to agriculture in India, how can the technique of ‘genome sequencing’, often seen in the news, be used in the immediate future? 1. Genome sequenc

Why is there a concern about copper smelting plants? 1. They may release lethal quantities of carbon monoxide into the environment. 2. The copper slag can cause

Consider the following statements: 1. Maize can be used for the production of starch. 2. Oil extracted from maize can be a feedstock for biodiesel. 3. Alcoholic

With reference to bio-toilets used by the Indian Railways, consider the following statements: 1. The decomposition of human waste in the bio-toilets is initiate

With reference to Neem tree, consider the following statements: 1. Neem oil can be used as a pesticide to control the proliferation of some species of insects a

Consider the following statements: 1. Genetic changes can be introduced in the cells that produce eggs or sperms of a prospective parent. 2. A person’s genome c

“System of rice Intensification” of cultivation, in which alternate wetting and drying of rice fields is practised, results in: 1. Reduced seed requirement 2. R

With reference to the usefulness of the byproducts of the sugar industry, which of the following statements is/are correct? 1. Bagasse can be used as biomass fu

With reference to ‘fly ash’ produced by the power plants using coal as fuel, which of the following statements is/are correct? 1. Fly ash can be used in the pro

Consider the following: 1. Rice fields 2. Coal mining 3. Domestic animals 4. Wet lands Which of the above are sources of methane, a major greenhouse gas?

Steel slag can be the material for which of the following? 1. Construction of base road 2. Improvement of agricultural soil 3. Production of cement Select the

In the context of India, which of the following is/are considered to be practice(s) of eco-friendly agriculture? 1. Crop diversification 2. Legume intensificati

Consider the following statements regarding mercury pollution: (a) Gold mining activity is a source of mercury pollution in the world. (b) Coal-based thermal p

Why does the Government of India promote the use of Neem-coated Urea’ in agriculture?

Due to some reasons, if there is a huge fall in the population of species of butterflies, what could be its likely consequence/consequences? 1. Pollination of s

Consider the following activities: 1. Spraying pesticides on a crop field 2. Inspecting the craters of active volcanoes 3. Collecting breath samples from spouti

Consider the following statements : 1. Most of the world's coral reefs are in tropical waters. 2. More than one-third of the world's coral reefs are located in

In the context of solving pollution problems, what is/are the advantage/advantages of bioremediation techniques? 1. It is a technique for cleaning up pollution

The scientific view is that the increase in global temperature should not exceed 2°C above the pre-industrial level. If the global temperature increases beyond

Consider the following statements: 1. Other than those made by humans, nanoparticles do not exist in nature. 2. Nanoparticles of some metallic oxides are used i

With reference to organic farming in India, consider the following statements : 1. ‘The National Programme for Organic Production’ (NPOP) is operated under the

With reference to green hydrogen, consider the following statements: 1. It can be used directly as a fuel for internal combustion. 2. It can be blended with nat

Consider the following statements: 1. Some microorganisms can grow in environments with temperature above the boiling point of water. 2. Some microorganisms can

Consider the following statements: 1. Biofilms can form on medical implants within human tissues. 2. Biofilms can form on food and food processing surfaces. 3.

Which of the following are nitrogen-fixing plants? 1. Alfalfa 2. Amaranth 3. Chickpea 4. Clover 5. Purslane (Kulfa) 6. Spinach Select the correct answer using

In the context of proposals to the use of hydrogen-enriched CNG (H-CNG) as fuel for buses in public transport, consider the following statements: 1. The main ad

What are the possible limitations of India in mitigating the global warming at present and in the immediate future? 1. Appropriate alternate technologies are no

In the context of India’s preparation for Climate-Smart Agriculture, consider the following statements: 1. The ‘Climate-Smart Village’ approach in India is a pa

Which of the following statements can help in water conservation in agriculture? 1. Reduced or zero tillage of the land 2. Applying gypsum before irrigating th

There is a concern over the increase in harmful algal blooms in the seawaters of India. What could be the causative factors for this phenomenon? 1. Discharge of

Which of the following are some important pollutants released by the steel industry in India? 1. Oxides of sulphur 2. Oxide of nitrogen 3. Carbon monoxide 4. Ca

Which of the following statements is/are correct? Proper design and effective implementation of UN-REDD+ Programme can significantly contribute to: 1. protectio

Consider the following: 1. Carbon monoxide 2. Nitrogen oxide 3. Ozone 4. Sulphur dioxide Excess of which of the above in the environment is/are the cause(s) o

With reference to an organisation known as ‘BirdLife International’, which of the following statements is/are correct? 1. It is a Global Partnership of Conserva

Human activities in the recent past have caused the increased concentration of carbon dioxide in the atmosphere, but a lot of it does not remain in the lower at

With reference to ‘stem cells’, frequently in the news, which of the following statements is/are correct? 1. Stem cells can be derived from mammals only. 2. Ste

With reference to an initiative called ‘The Economics of Ecosystems and Biodiversity (TEEB)’, which of the following statements is/are correct? 1. It is an init

With reference to micro-irrigation, which of the following statements is/are correct? 1. Fertilizer/nutrient loss can be reduced. 2. It is the only means of ir

With reference to ‘palm oil’, consider the following statements: 1. The palm oil tree is native to Southeast Asia. 2. Palm oil is a raw material for some indust

Which of the following best describe/ describes the aim of the ‘Green India Mission’ of the Government of India? 1. Incorporating environmental benefits and cos

Consider the following statements: The satellite Oceansat-2 launched by India helps in 1. estimating the water vapour content in the atmosphere. 2. predicting t

Recombination DNA technology (Genetic Engineering) allows genes to be transferred: 1. Across different species of plants 2. From animals to plants 3. From micro

Which of the following statements is/are correct? Viruses can infect 1. Bacteria 2. Fungi 3. Plants Select the correct answer using the code given below.

Consider the following statements: Chlorofluorocarbons, known as ozone-depleting substances, are used: 1. In the production of plastic foams. 2. In the producti

Consider the following statements: 1. Under Ramsar Convention, it is mandatory on the part of the Government of India to protect and conserve all the wetlands i

Consider the following statements: 1. 36% of India’s districts are classified as “overexploited” or “critical” by the Central Ground Water Authority (CGWA). 2.

Consider the following statements: 1. The Government of India provides Minimum Support Price for niger (Guizotia abyssinica) seeds. 2. Niger is cultivated as a

With reference to pulse production in India, consider the following statements: 1. Black gram can be cultivated as both kharif and rabi crops. 2. Green-gram alo

Consider the following activities: 1. Spreading finely ground basalt rock on farmlands extensively 2. Increasing the alkalinity of oceans by adding lime 3. Capt

Consider the following statements: Statement-I: Carbon markets are likely to be one of the most widespread tools in the fight against climate change.

Consider the following statements: 1. "The Climate Group" is an international non-profit organization that drives climate action by building large net

"Climate Action Tracker" which monitors the emission reduction pledges of different countries is a: (a) Database created by coalition of research orga

With reference to the ‘New York Declaration on Forests’, which of the following statements are correct? 1. It was first endorsed at the United Nations

In the context of which of the following do some scientists suggest the use of cirrus cloud thinning technique and the injection of sulphate aerosol i

The term ‘Intended Nationally Determined Contributions’ is sometimes seen in the news in the context of (a) pledges made by the European countries to

What is ‘Greenhouse Gas Protocol’? (a) It is an international accounting tool for government and business leaders to understand, quantify and manage g

The increasing amount of carbon dioxide in the air is slowly raising the temperature of the atmosphere, because it absorbs (a) The water vapour of the