Miscellaneous: UPSC Previous Year Questions (Environment and Ecology)
2 previous year UPSC Prelims questions on Miscellaneous (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 2023Environment and Ecology · Miscellaneous
Q1. Consider the following statements: Statement-I: India, despite having uranium deposits, depends on coal for most of its electricity production. Statement-II: Uranium, enriched to the extent of at least 60%, is required for the production of electricity. Which one of the following is correct in respect of the above statements?
Explanation
Statement-I is correct: Although India has significant uranium deposits, its reliance on coal for electricity production is higher compared to uranium. It constitutes 55% of the nation’s energy requirements. Statement-II is incorrect: For electricity generation, uranium enrichment to a level of 3 to 5 percent of the Uranium (235) isotope is necessary. Research reactors utilise uranium enriched to a minimum concentration of 20%. Uranium enriched to at least 90% is classified as weapons-grade uranium.
UPSC 2023Environment and Ecology · Miscellaneous
Q2. Consider the following infrastructure sectors: 1. Affordable housing 2. Mass rapid transport 3. Health care 4. Renewable energy On how many of the above does the UNOPS Sustainable Investments in Infrastructure and Innovation (S3i) initiative focus for its investments?
Explanation
The UNOPS Sustainable Investments in Infrastructure and Innovation (S3i) initiative was introduced in 2015 as a pilot project to investigate inventive approaches to financing sustainable infrastructure endeavours in developing nations. The initiative sought to capitalise on UNOPS’ proficiency and track record in providing infrastructure solutions that align with the requirements and ambitions of individuals and communities. The S3i initiative provides initial funding for significant projects in affordable housing, renewable energy, and health infrastructure. It does not emphasise investments in mass rapid transport infrastructure.
Answer key for these questions
Q
UPSC year
Correct answer
1
2023
(c) Statement-I is correct but Statement-II is incorrect
2
2023
(c) Only three
Frequently asked questions
How many previous year UPSC questions are there on Miscellaneous?
This page covers 2 previous year UPSC Prelims GS Paper-I questions on Miscellaneous (Environment and Ecology), asked from 2008 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 Miscellaneous?
Questions on Miscellaneous (Environment and Ecology) are available for 8 years, from 2008 to 2025. Use the Year filter to practise a single paper.
