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Chlorofluorocarbons CFC climate change sea level rise global warming UPSC CSAT Paper 1 question S&T

This video is for everybody connected with UPSC civil services in one way or another. This question is from the CSAT of 2012. It was only the second CSAT ever and probably one of the most difficult papers. With more weightage given to Environment and Ecology sections. The question paper was very dynamic. I hail from Tamil Nadu and did my preparation from Vajiram and Ravi Institute for IAS Exam. I did the Foundation Course Prelims + Mains and paid about 70000 INR for the course. (This course was based on the old pattern of the mains exam) in which there were only two GS Papers in the mains. The prelims syllabus, consisted of just two papers with subjects of History, Polity, Economy, Geography, Science&Technology and Social Issues At that time there were two optional subjects that had to be chosen by an aspirant. So I chose the subjects Public Administration and Geography and underwent training for the Mains papers under three tutors namely Rajesh Gupta and Kiran (both IRS officers) for public administration and Shabbir Basheer Ahmed for Geography. ( I paid 70000 INR approx for both subjects) These classes for the mains optional papers started in May 2012 and sessions were held in the forenoon and afternoon. In the forenoon from 8:00 am to 10:00am, I attended Pub Ad Paper 1 by Rajesh Gupta sir on Sunday, Monday, Tuesday, Wednesday and Pub Ad Paper 2 by Kiran Sir on Thursday, Friday, Saturday. From 11am to 2 pm,(Monday to Saturday) I attended training under Shabbir Sir - sometimes the classes went on till 4:00 PM. This went on till September of 2012. From Oct 2012 to Mar 2013, I attended the Prelim-cum-Main Foundation Course for General Studies, under a variety of teachers, Polity - Abi and Ravi Sir and Devranjan Mishra, Economy - Kapuria and Sanjay Verma and Abilash Sir. History - Vikas and Ojha sir. Geography - Manocha and Shabbir sir. S&T - Ajay Sir and another Biology teacher. These lasses were held everyday including Sunday for 2 hours. I was in the evening batch from 6:00 PM to 8:00 PM. There was another module for CSAT Paper 2 which I opted out of. As my preparation was going on, in February, 2013 CSE exam notification came out, there was a shift in the pattern of the exam. The previous shift was in 2011, with the introduction of the CSAT. Now, there was only one optional, and four new GS Papers, I was in the first batch to face the new pattern. So now the Mains exam which was tentatively scheduled in Oct 2013, got shifted to Dec 2013. To give candidates breathing space to adjust to the new syllabus. (It was a shifting goal post scenario). The PCM foundation went on till March 2013. After which I shifted from Vajiram and started my self preparation. On May 26, 2013 was my first prelim attempt. When I did not qualify, I did not return to Vajiram for the remaining course work, which was supposed to go on till September for mains. I doubled my effort and started self-preparing for the next attempt in 2014, now the yearly prelims was shifted from May to Aug. Leaving me a whole year for preparation. During Oct 2013, I appeared for the All India Civil Services Coaching Centre Entrance Exam and cleared it. I secured state sponsored candidacy in the newly opened building in Greenways Road, Chennai. From Jan 2014, I was fully preparing for the UPSC exam along with my MBA project work. The Aug 2014 attempt was my best. I scored 199 and the cut off was 204. I missed qualification for the mains by a whisker. I sat for the Sub-Inspector Exam of TNUSRB in May 2015. I cleared the written exam and in August of 2015, I got disqualified in the Endurance Test of the Physical Examination. 1500m running was done in 7m40seconds. Twice I sat for the SSC CGL Exam Tier 1 and cleared it. (In 2014 and 2015) In 2015 August, I took up the CSE prelims as a working professional. This was my first attempt as a working professional, I was working in an NGO. In 2016, I gave my second attempt as a working professional at the CSAT prelims (overall fourth attempt), this time I started work in a private company where I continue to work till now. This attempt was without success. My attempts as a working professional were attempts without full fledged preparation. I was doing current affairs from Newspaper, but not solving previous year question papers etc, (because of 9 to 5 job and marital responsibilities) they were half-hearted attempts. In 2017, I skipped the attempt, as I did not want to waste it. So in 2018, with just three days preparation, I attended prelims. By self-evaluating my performance in the CSAT prelims Paper 1, for the first time, I skipped the Paper 2. (This was my first attempt when my wife accompanied me). In 2019 and 2020, I have not given attempts for lack of preparation. However, based on my best performance in 2014, I am helping aspirants in their pursuit of the noble, prestigious call to aspire for the Civil Services Examination of India. All the Best ! Happy Learning !


Ecology:   |  biodiversity  |  habitat  |  niche  |  niche construction  |  biome  |  biosphere  |  individual ecology  |  population ecology  |  ecosystem  |  keystone species
Pollution:   |  air pollution  |  light pollution  |  littering  |  noise  |  radioactive  |  water pollution
Sustainability:   |  social  |  economic  |  environment  |  organizations  |  sustainable development  |  sustainable life
Environment:   |  environmental education  |  recycling  |  environmental health  |  conservation  |  animals  |  forests  |  ecosystems  |  clean energy
Climate-change:   |  atmosphere  |  cfcs  |  greenhouse gases  |  NASA  |  glaciers  |  carbon emission  |  solar output