Environment

Biodiversity, climate change, pollution, protected areas. Filter by topic or year.

14 questions

2026 · Question 45 · Renewable Energy
Which of the following statements with regard to Green Hydrogen is/are correct ? 1. It is decarbonized hydrogen obtained from natural gas reforming combined with carbon capture and storage (CCS). 2. It is produced using electrolysis of water with electricity generated by renewable energy. 3. National Green Hydrogen Mission of India aims for abatement of nearly 50 MMT of annual greenhouse gas emissions by 2030. Select the answer using the code given below :
Choose your answer(a)1 only(b)2 and 3 only(c)2 only(d)1, 2 and 3
Source: UPSC, Civil Services (Preliminary), General Studies Paper I (opens in a new tab)
2025 · Question 41 · Renewable Energy
Consider the following types of vehicles : I. Full battery electric vehicles II. Hydrogen fuel cell vehicles III. Fuel cell-electric hybrid vehicles How many of the above are considered as alternative powertrain vehicles?
Choose your answer(a)Only one(b)Only two(c)All the three(d)None
Source: UPSC, Civil Services (Preliminary), General Studies Paper I (opens in a new tab)
2025 · Question 63 · Renewable Energy
Consider the following statements : Statement I : Of the two major ethanol producers in the world, i.e., Brazil and the United States of America, the former produces more ethanol than the latter. Statement II : Unlike in the United States of America where corn is the principal feedstock for ethanol production, sugarcane is the principal feedstock for ethanol production in Brazil. Which one of the following is correct in respect of the above statements?
Choose your answer(a)Both Statement I and Statement II are correct and Statement II explains Statement I(b)Both Statement I and Statement II are correct but Statement II does not explain Statement I(c)Statement I is correct but Statement II is not correct(d)Statement I is not correct but Statement II is correct
Source: UPSC, Civil Services (Preliminary), General Studies Paper I (opens in a new tab)
2025 · Question 70 · Renewable Energy
Consider the following statements about ‘PM Surya Ghar Muft Bijli Yojana’ : I. It targets installation of one crore solar rooftop panels in the residential sector. II. The Ministry of New and Renewable Energy aims to impart training on installation, operation, maintenance and repairs of solar rooftop systems at grassroot levels. III. It aims to create more than three lakhs skilled manpower through fresh skilling, and up-skilling, under scheme component of capacity building. Which of the statements given above are correct?
Choose your answer(a)I and II only(b)I and III only(c)II and III only(d)I, II and III
Source: UPSC, Civil Services (Preliminary), General Studies Paper I (opens in a new tab)
2024 · Question 27 · Renewable Energy
Consider the following : 1. Battery storage 2. Biomass generators 3. Fuel cells 4. Rooftop solar photovoltaic units How many of the above are considered “Distributed Energy Resources” ?
Choose your answer(a)Only one(b)Only two(c)Only three(d)All four
Source: UPSC, Civil Services (Preliminary), General Studies Paper I (opens in a new tab)
2024 · Question 37 · Renewable Energy
Which one of the following is the exhaust pipe emission from Fuel Cell Electric Vehicles, powered by hydrogen ?
Choose your answer(a)Hydrogen peroxide(b)Hydronium(c)Oxygen(d)Water vapour
Source: UPSC, Civil Services (Preliminary), General Studies Paper I (opens in a new tab)
2024 · Question 38 · Renewable Energy
Recently, the term “pumped-storage hydropower” is actually and appropriately discussed in the context of which one of the following ?
Choose your answer(a)Irrigation of terraced crop fields(b)Lift irrigation of cereal crops(c)Long duration energy storage(d)Rainwater harvesting system
Source: UPSC, Civil Services (Preliminary), General Studies Paper I (opens in a new tab)
2024 · Question 46 · Renewable Energy
Consider the following materials : 1. Agricultural residues 2. Corn grain 3. Wastewater treatment sludge 4. Wood mill waste Which of the above can be used as feedstock for producing Sustainable Aviation Fuel ?
Choose your answer(a)1 and 2 only(b)3 and 4 only(c)1, 2, 3 and 4(d)1, 3 and 4 only
Source: UPSC, Civil Services (Preliminary), General Studies Paper I (opens in a new tab)
2020 · Question 84 · Renewable Energy
According to India’s National Policy on Biofuels, which of the following can be used as raw materials for the production of biofuels ? 1. Cassava 2. Damaged wheat grains 3. Groundnut seeds 4. Horse gram 5. Rotten potatoes 6. Sugar beet Select the correct answer using the code given below :
Choose your answer(a)1, 2, 5 and 6 only(b)1, 3, 4 and 6 only(c)2, 3, 4 and 5 only(d)1, 2, 3, 4, 5 and 6
Source: UPSC, Civil Services (Preliminary), General Studies Paper I (opens in a new tab)
2020 · Question 88 · Renewable Energy
With reference to solar water pumps, consider the following statements : 1. Solar power can be used for running surface pumps and not for submersible pumps. 2. Solar power can be used for running centrifugal pumps and not the ones with piston. Which of the statements given above is/are correct ?
Choose your answer(a)1 only(b)2 only(c)Both 1 and 2(d)Neither 1 nor 2
Source: UPSC, Civil Services (Preliminary), General Studies Paper I (opens in a new tab)
2018 · Question 67 · Renewable Energy
With reference to solar power production in India, consider the following statements : 1. India is the third largest in the world in the manufacture of silicon wafers used in photovoltaic units. 2. The solar power tariffs are determined by the Solar Energy Corporation of India. Which of the statements given above is/are correct ?
Choose your answer(a)1 only(b)2 only(c)Both 1 and 2(d)Neither 1 nor 2
Source: UPSC, Civil Services (Preliminary), General Studies Paper I (opens in a new tab)
2017 · Question 22 · Renewable Energy
It is possible to produce algae based biofuels, but what is/are the likely limitation(s) of developing countries in promoting this industry ? 1. Production of algae based biofuels is possible in seas only and not on continents. 2. Setting up and engineering the algae based biofuel production requires high level of expertise/technology until the construction is completed. 3. Economically viable production necessitates the setting up of large scale facilities which may raise ecological and social concerns. Select the correct answer using the code given below :
Choose your answer(a)1 and 2 only(b)2 and 3 only(c)3 only(d)1, 2 and 3
Source: UPSC, Civil Services (Preliminary), General Studies Paper I (opens in a new tab)
2016 · Question 36 · Renewable Energy
‘Net metering’ is sometimes seen in the news in the context of promoting the
Choose your answer(a)production and use of solar energy by the households/consumers(b)use of piped natural gas in the kitchens of households(c)installation of CNG kits in motor-cars(d)installation of water meters in urban households
Source: UPSC, Civil Services (Preliminary), General Studies Paper I (opens in a new tab)
2016 · Question 78 · Renewable Energy
On which of the following can you find the Bureau of Energy Efficiency Star Label? 1. Ceiling fans 2. Electric geysers 3. Tubular fluorescent lamps Select the correct answer using the code given below.
Choose your answer(a)1 and 2 only(b)3 only(c)2 and 3 only(d)1, 2 and 3
Source: UPSC, Civil Services (Preliminary), General Studies Paper I (opens in a new tab)

Consider the following types of vehicles : I. Full battery electric vehicles II. Hydrogen fuel cell vehicles III. Fuel cell-electric hybrid vehicles How many of the above are considered as alternative powertrain vehicles?

Consider the following : 1. Battery storage 2. Biomass generators 3. Fuel cells 4. Rooftop solar photovoltaic units How many of the above are considered “Distributed Energy Resources” ?

Which one of the following is the exhaust pipe emission from Fuel Cell Electric Vehicles, powered by hydrogen ?

Recently, the term “pumped-storage hydropower” is actually and appropriately discussed in the context of which one of the following ?

Consider the following materials : 1. Agricultural residues 2. Corn grain 3. Wastewater treatment sludge 4. Wood mill waste Which of the above can be used as feedstock for producing Sustainable Aviation Fuel ?

According to India’s National Policy on Biofuels, which of the following can be used as raw materials for the production of biofuels ? 1. Cassava 2. Damaged wheat grains 3. Groundnut seeds 4. Horse gram 5. Rotten potatoes 6. Sugar beet Select the correct answer using the code given below :

With reference to solar water pumps, consider the following statements : 1. Solar power can be used for running surface pumps and not for submersible pumps. 2. Solar power can be used for running centrifugal pumps and not the ones with piston. Which of the statements given above is/are correct ?

‘Net metering’ is sometimes seen in the news in the context of promoting the

On which of the following can you find the Bureau of Energy Efficiency Star Label? 1. Ceiling fans 2. Electric geysers 3. Tubular fluorescent lamps Select the correct answer using the code given below.