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UPSC 2014: Which of the following are some important pollutants released by steel industry in India? 1. Oxides of sulphur 2. Oxides of nitrogen 3. Carbon monoxide 4. Carbon dioxide Select the correct answer using the code given below.
(a)1, 3 and 4 only
(b)2 and 3 only
(c)1 and 4 only
(d)1, 2, 3 and 4
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Not attemptedCorrect Answer: (d) 1, 2, 3 and 4
Coke-fired blast furnaces and sintering units in steel plants emit sulphur oxides (from sulphur in coal/ore), nitrogen oxides (from high-temperature combustion), carbon monoxide (incomplete combustion and reduction reactions) and large volumes of carbon dioxide (complete combustion of carbon). All four listed gases are therefore significant pollutants from the steel industry, so option (d) including 1-4 is correct. ([edukemy.com](https://edukemy.com/upsc-current-affairs/daily-current-affairs/indias-steel-sector/05-01-2024?utm_source=openai))
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Frequently Asked Questions
What is the correct answer to this UPSC 2014 Environment & Ecology question?▼
The correct answer is option (d): 1, 2, 3 and 4. Watch the detailed video explanation in our Sherlocking Prelims course on UnlockIAS.
Which year was this Pollution & Waste Management question asked in UPSC Prelims?▼
This question was asked in UPSC CSE Prelims 2014, GS Paper 1, as Question 24. It falls under Environment & Ecology > Pollution & Waste Management.
What is the difficulty level of this UPSC question?▼
This question is rated "moderate". It requires sound conceptual understanding of the topic.
How many UPSC Prelims questions have been asked from Pollution & Waste Management?▼
UPSC has asked 38 questions from Pollution & Waste Management (under Environment & Ecology) across multiple years. Visit the topic page to see the full list and year-wise trends.