Swachh Vayu Diwas is observed on which international day?
- A.World Environment Day
- B.World Ozone Day
- C.International Day of Clean Air for Blue Skies
- D.World Meteorological Day
Correct answer
Explanation
The correct answer is the International Day of Clean Air for Blue Skies, on which the ministry held Swachh Vayu Diwas and gave away the fifth round of Swachh Vayu Sarvekshan awards. Option A names World Environment Day, the best known environmental observance and therefore the most tempting wrong answer, but it falls in June and is not tied to this event. Option B names World Ozone Day, which marks the Montreal Protocol and concerns ozone depleting substances rather than ambient air quality. Option D names World Meteorological Day, which belongs to the weather and climate services community. The link to remember is simple: clean air day, clean air survey, clean air programme. The chief guest at this edition was Justice Prakash Shrivastava, Chairperson of the National Green Tribunal, who called clean air a fundamental need rather than a luxury.
Read the full article: 5th Swachh Vayu Sarvekshan Awards Given on Swachh Vayu Diwas 2026
Practice Questions
How many cities are covered under the National Clean Air Programme?
- A.102 cities
- B.130 cities
- C.150 cities
- D.178 cities
Show answer
The release repeats this figure three times, once for the coverage of the programme, once for the cities that took part in the ranking exercise, and once for the cities whose air quality management is tracked on the PRANA portal, so it is the single number a candidate must carry…
Read the full explanation →How many NCAP cities have met the National Ambient Air Quality Standards?
- A.14
- B.26
- C.72
- D.108
Show answer
The ministry set out the record on PM10 for the year 2025-26 against the base of the financial year 2017-18 in four steps, and every one of those steps appears among the options here, which is what makes the question worth practising.
Read the full explanation →Which portal tracks air quality management parameters for the NCAP cities?
- A.SAMEER portal
- B.PRANA portal
- C.PARIVESH portal
- D.NAMASTE portal
Show answer
The Secretary of the ministry explained that the National Clean Air Programme gives every city a framework within which it works out its own strategy for clean air, while this portal follows the various parameters of air quality management for the cities under the programme.
Read the full explanation →Since ethanol supply year 2014-15, how much foreign exchange has the ethanol blending programme saved?
- A.More than Rs 62,000 crore
- B.More than Rs 1.01 lakh crore
- C.More than Rs 1.66 lakh crore
- D.More than Rs 1.97 lakh crore
Show answer
The ministry listed four cumulative outcomes of the blending programme since ethanol supply year 2014-15: foreign exchange savings above that amount, substitution of about 316 lakh metric tonnes of crude oil, avoidance of about 952 lakh metric tonnes of carbon dioxide, and transfers of more than Rs 1.66 lakh crore…
Read the full explanation →What ethanol content was recorded on average in the samples tested in Karnataka?
- A.19.30 per cent
- B.21.50 per cent
- C.26 per cent
- D.31 per cent
Show answer
All 56 samples tested in Karnataka, taken from different locations and from all three oil marketing companies, conformed to the prescribed specification, with ethanol content ranging between 19 and 20 per cent and averaging that figure.
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