In which month and year was the Swachh Bharat Mission launched?

The correct answer is 343 tonnes. The plant in Uttar Pradesh takes in that quantity of organic waste each day and yields about twenty-one tonnes of bio-CNG, along with twenty-eight tonnes of good quality compost that goes to farmers nearby. Its multi-feedstock design accepts wet waste, paddy straw, cattle dung and poultry litter, which is what lets it give crop residue a paying use instead of leaving it to be burnt. Options A at 143 tonnes, B at 243 tonnes and D at 443 tonnes are near misses built by changing the leading digit, a trap that catches a candidate who remembers only the last two digits of the figure. Aspirants should also hold on to the linked numbers for this plant: daily wet-waste supply has risen from seven or eight tonnes to about 125 tonnes, piped gas is expected to reach roughly 45,000 households, and annual emissions are expected to fall by about 57,000 tonnes.

The correct answer is Gwalior, in Madhya Pradesh. Adarsh Gaushala stands at Laltipara and is the city's largest cowshed, home to more than ten thousand cattle. Its compressed bio-gas plant of 100 tonnes per day opened in October 2024, spread over five acres, cost 31 crore rupees and was developed with Indian Oil Corporation. It is also the state's first such plant designed to take vegetable and fruit waste from markets and homes along with dung, and it converts 100 tonnes of dung a day into two tonnes of gas and ten to fifteen tonnes of dry bio-manure. Option A, Bhopal, is the state capital but not the site. Option C, Indore, is widely known for cleanliness rankings, which is exactly why it tempts a guess here. Option D, Jabalpur, is another large city of the same state and has no link to this facility.

The correct answer is Hyderabad. At the Bowenpally Vegetable Market roughly ten tonnes of vegetable and fruit waste is collected each day, and since an on-site biogas plant came up almost all of it is used rather than sent to landfill. The plant makes about 400 to 500 units of electricity and 30 kg of biofuel daily, which run the streetlights, stalls, administrative building and water supply network, while the biofuel goes to the market's kitchen and to a generator that works wholly on biogas. The power bill has come down by about half from roughly three lakh rupees a month, and five more plants have been funded at Gudimalkapur, Gaddiannaram, Erragadda, Alwal and Saroornagar. Options A, B and D are large cities in other states and none of them was named for this model, so they only test whether the candidate has tied the market's name to the right city.

The correct answer is idols of Plaster of Paris and those with harmful chemical colours. Participants at the programme were sensitised about the use of eco-friendly clay idols and were advised to avoid immersing idols made of Plaster of Paris, or carrying harmful chemical colours, in drinking water tanks. Option A is wrong because clay idols were precisely what the programme recommended, not what it warned against. Options C and D name materials that were not discussed at the programme at all. Beyond the choice of idol, people were encouraged to use the immersion sites designated for the purpose, to keep idols and puja samagri out of natural water bodies, and to maintain cleanliness and take safety precautions at immersion sites, since protecting water resources rests on collective responsibility and community participation.

The correct answer is Swachhata Hi Seva. The Indian Council of Agricultural Research organised its awareness and cleanliness initiatives at its institutions as part of these activities, with the focus placed on cleanliness after Ganesh Visarjan, clean public spaces and responsible waste management. Option A, Namami Gange, is the programme for the rejuvenation of the Ganga and was not named here. Option B, Mission LiFE, promotes environment-friendly lifestyles but is not the campaign under which these programmes were held. Option D, the Jal Jeevan Mission, is about household tap water supply and has nothing to do with this drive. Under the campaign, participants were sensitised about eco-friendly clay idols, the use of designated immersion sites and the proper collection and disposal of flowers, puja samagri, plastic, thermocol and decorative waste.