Which one of the following makes a tool with a stick to scrap insects from a hole in a tree or a log of wood?
Environment and Ecology
2023
Consider the following:1.Aerosols2.Foam agents3.Fire retardants4.Lubricants In the making ofhow many of the above are hydrofluorocarbons used?
Consider the following statements:Statement-I: Carbon markets are likely to be one of the most widespread tools in the fight against climate change.Statement-II: Carbon markets transfer resources from the private sector to the State.Which one of the following is correct in respect of the above statements?
Consider the following statements:Once the Central Government notifies an area as a 'Community Reserve'1.the Chief Wildlife Warden of the State becomes the governing authority of such forest2.hunting is not allowed in such area3.people of such area are allowed to collect non-timber forest produce4.people of such area are allowed traditional agricultural practicesHow many of the above statements are correct?
With reference to the role of biofilters in Recirculating Aquaculture System, consider the following statements:1.Biofilters provide waste treatment by removing uneaten fish feed.2.Biofilters convert ammonia present in fish waste to nitrate.3.Biofilters increase phosphorus as nutrient for fish in water.How many of the statements given above are correct?
Consider the following statements regarding mercury pollution :1.Gold mining activity is a source of mercury pollution in the world.2.Coal-based thermal power plants cause mercury pollution.3.There is no known safe level of exposure to mercury.How many of the above statements are correct?
Consider the following activities :1.Spreading finely ground basalt rock on farmlands extensively2.Increasing the alkalinity of oceans by adding lime3.Capturing carbon dioxide released by various industries and pumping it into abandoned subterranean mines in the form of carbonated watersHow many of the above activities are often considered and discussed for carbon capture and sequestration?
Consider the following statements:1.In India, the Biodiversity Management committees are key to the realization of the objectives of Nagoya Protocol.2.The Biodiversity Management committees have important functions in determining access and benefit sharing, including the power to levy collection fees on the access of biological resources within its jurisdiction.Which of the statements given above is/are correct?
Consider the following heavy industries :1.Fertilizer plants2.Oil refineries3.Steel plants Green hydrogen is expected to play a significant role in decarbonizinghow many of the above industries?
2022
Among the following crops, which one is the most important anthropogenic source of both methane and nitrous oxide?
"System of Rice Intensification" of cultivation, in which alternate wetting and drying of rice fields is practised, results in:1.Reduced seed requirement2.Reduced methane production3.Reduced electricity consumptionSelect the correct answer using the code given below:
"Climate Action Tracker", which monitors the emission reduction pledges of different countries is a:
Consider the following statements:1.'The Climate Group' is an international non-profit organization that drives climate action by building large networks and runs them.2.The International Energy Agency in partnership with the Climate Group launched a global initiative 'EP100'.3.EP100 brings together leading companies committed to driving innovation in energy efficiency and increasing competitiveness while delivering on emission reduction goals.4.Some Indian companies are members of EP100.5.The International Energy Agency is the Secretariat to the 'Under2 Coalition'.Which of the statements given above are correct?
"If rainforests and tropical forests are the lungs of the Earth, then surely wetlands function as its kidneys."Which one of the following functions of wetlands best reflects the above statement?
In the context of WHO Air Quality Guidelines, consider the following statements:1.The 24-hour mean of PM 2.5 should not exceed 15 µg/m3 and annual mean of PM2.5 should not exceed 5 µg/m3.2.In a year, the highest levels of ozone pollution occur during the periods of inclement weather.3.PM10 can penetrate the lung barrier and enter the bloodstream.4.Excessive ozone in the air can trigger asthma.Which of the statements given above are correct?
With reference to polyethylene terephthalate, the use of which is so widespread in our daily lives, consider the following statements:1.Its fibres can be blended with wool and cotton fibres to reinforce their properties.2.Containers made of it can be used to store any alcoholic beverage.3.Bottle made of it can be recycled into other products.4.Articles made of it can be easily disposed of by incineration without causing greenhouse gas emissions.Which of the statements given above are correct?
Which of the following is not a bird?
Which of the following are nitrogen-fixing plants?1.Alfalfa2.Amarnath3.Chickpea4.Clover5.Purslane (Kulfa)6.SpinachSelect the correct answer using the code given below:
Which one of the following has been constituted under the Environment (Protection) Act, 1986?
Which one of the following statements best describes the 'Polar Code'?
With reference to Indian laws about wildlife protection, consider the following statements:1.Wild animals are the sole property of the government.2.When a wild animal is declared protected, such animal is entitled for equal protection whether it is found in protected areas or outside.3.Apprehension of a protected wild animal becoming a danger to human life is sufficient ground for its capture or killing.Which of the statements given above is/are correct?
Certain species ofwhich one of the following organisms are well known as cultivators of fungi?
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 in the manufacture of some cosmetics.3.Nanoparticles of some commercial products which enter the environment are unsafe for humans.Which of the statements given above is/are correct?
Consider the following:1.Carbon monoxide2.Nitrogen oxide3.Ozone4.Sulphur dioxideExcess ofwhich of the above in the environment is/are cause(s) of acid rain?
2021
Why is there a concern about copper smelting plants?1.They may release lethal quantities of carbon monoxide into environment.2.The copper slag can cause the leaching of some heavy metals into environment.3.They may release sulphur dioxide as a pollutant.Select the correct answer using the code given below