Pollution: UPSC Previous Year Questions (Environment and Ecology)
2 previous year UPSC Prelims questions on Pollution (Environment and Ecology). Choose an option to see the answer and explanation.
Explanations state facts as of the year each question was asked; words like “recently” refer to that year.
Showing 1–2 of 2 questions
UPSC 2016Environment and Ecology · Pollution
Q1. Which of the following best describe/ describes the aim of the ‘Green India Mission’ of the Government of India? 1. Incorporating environmental benefits and costs into the Union and State Budgets thereby implementing the ‘green accounting’ 2. Launching the second green revolution to enhance agricultural output so as to ensure food security to one and all in the future 3. Restoring and enhancing forest cover and responding to climate change by a combination of adaptation and mitigation measures Select the correct answer using the code given below.
Explanation
Green India Mission is one of the eight missions launched under the National Action Plan on Climate Change (NAPCC) with the aim to maintain, restore, and improve India’s dwindling forest cover and combating climate change through a combination of adaptation and mitigation strategies.
Statement 1 and 2 are incorrect: Green accounting is an approach that incorporates environmental costs into financial assessments. The primary goal of green accounting is to help businesses balance economic objectives with environmental considerations. It is not part of the Green India Mission. Facing serious challenges like overproduction of crops like rice and wheat, soil degradation, and food price volatility, the country would need the Second green revolution to focus on the interconnectedness of agriculture, water, and energy to make farming more climate-resilient and environmentally sustainable. Both the statements are irrelevant to the Green India Mission.
Statement 3 is correct: The mission intends to increase forest/ tree cover; improve/enhance ecosystem services and increase the forest-based livelihood income of about 3 million households.
UPSC 2016Environment and Ecology · Pollution
Q2. In the cities of our country, which among the following atmospheric gases are normally considered in calculating the value of the Air Quality Index? 1. Carbon dioxide 2. Carbon monoxide 3. Nitrogen dioxide 4. Sulfur dioxide 5. Methane Select the correct answer using the code given below.
Explanation
There are six AQI categories, namely Good + Satisfactory, Moderately polluted, Poor, Very Poor, and Severe. Each of these categories is decided based on ambient concentration values of air pollutants and their likely health impacts (known as health breakpoints). AQ sub-index and health breakpoints are evolved for eight pollutants, namely:
Ground-level Ozone or O₃ Particulate Matter (PM10 and PM 2.5) Carbon Monoxide or CO Sulphur Dioxide or SO₂ and Nitrogen Dioxide or NO₂ Ammonia (NH₃) Lead (Pb)
Answer key for these questions
Q
UPSC year
Correct answer
1
2016
(c) 3 only
2
2016
(b) 2, 3 and 4 only
Frequently asked questions
How many previous year UPSC questions are there on Pollution?
This page covers 2 previous year UPSC Prelims GS Paper-I questions on Pollution (Environment and Ecology), asked from 2005 to 2025. Each has the correct answer and an explanation.
How should I use previous year UPSC questions for Prelims?
Attempt each question first, then open the answer and read the explanation for every option. Repeat by chapter, and track which statements UPSC reuses across years. Previous year questions show the exam pattern and difficulty level.
Which years are covered for Pollution?
Questions on Pollution (Environment and Ecology) are available for 14 years, from 2005 to 2025. Use the Year filter to practise a single paper.
