UPSC CSE PRELIMS - Questions and Answers

Consider the following statements with reference to India's response to climate change:

• I. India's Long-Term Low Emission Development Strategy (LT-LEDS) is a crucial tool for achieving net-zero emissions by 2070.
• II. India's 4th Biennial Update Report (BUR-4) submitted in December 2024 recorded around 8% decrease in Greenhouse gas emissions in 2020 over 2019.
• III. Climate-resilient development necessarily depends on quick and short-term achievement of emission reduction targets.

Which of the following relationships among the above statements is/are correct?

1. Statement I is empirically supported by Statement II.
2. Statement III contradicts the approach implicit in Statement I.
3. Statement I and Statement III together establish the premise of long-term sustainability.

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With respect to the Western Hoolock Gibbons, which of the following statements is/are correct?

1. A Sanctuary in North-east India is home to this ape species listed as Endangered in the IUCN Red List.
2. They have specialized brachiation and can easily swing between trees.
3. They possess a strong and heavy build like gorillas, yet are remarkably agile tree climbers.

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Which of the following best explain(s) the rationale for protecting mangrove ecosystems in the context of climate resilience?

1. Mangroves reduce tidal energy and store freshwater, making them ideal sites for paddy cultivation in saline estuarine belts.
2. Their salt-sensitive roots filter seawater, making mangroves key to converting coastal land into freshwater aquaculture zones.
3. By withstanding tidal surges and offering biomass resources, mangroves function both as natural bio-shields and livelihood bases for rural communities.

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In what way(s) does the Vizhinjam International Seaport represent a structural shift in India's maritime trade and logistics policy?

1. By functioning exclusively as a domestic cargo hub to reduce reliance on coastal shipping and eliminate the need for foreign collaborations.
2. By focusing primarily on passenger cruise tourism and heritage shipping to increase Kerala's profile as a maritime heritage destination.
3. By leveraging its natural deep draft and strategic location to reduce dependence on foreign trans-shipment ports, enhance revenue retention, and reposition India in regional maritime trade.

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Identify the river of the Indian sub-continent on the basis of the following information:

1. It has an antecedent drainage system.
2. It flows through three countries.
3. It originates in the Tibetan Plateau and is an important river for irrigation.
4. It does not form distributaries.

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Which of the following with reference to Indian States is/are not correct?

1. Uttar Pradesh shares its boundary with the highest number of other Indian States.
2. Rajasthan shares the longest international border among all Indian States.
3. Sikkim is the only State that shares its boundary with just one other Indian State.

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Which of the following statements with regard to the arrival of Amur Falcons at Doyang Lake in Nagaland each year from Mongolia is/are correct?

1. It showcases how sustained local conservation efforts can contribute to the arrival and protection of international migratory birds.
2. It reflects the global success of advanced tracking technologies that guide migratory birds back to their stopover sites.
3. It confirms that Amur Falcons have adapted to permanent residency in India due to favourable habitat changes.

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Which among the following is/are the objective(s) of the Rainfed Area Development (RAD) initiative under the National Mission for Sustainable Agriculture (NMSA)?

1. Encouraging monoculture in rainfed areas
2. Increasing rice cultivation in irrigated regions
3. Enhancing productivity and minimising climatic risks through Integrated Farming Systems (IFS)

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Which of the following is/are the most significant implication(s) of obtaining Oeko-Tex certification for Eri Silk in the global textile industry?

1. It allows Indian exporters to compete in high-end markets that prioritise chemical-free products.
2. It confirms that Eri Silk meets international safety, environmental, and quality standards, enabling its entry into premium eco-conscious markets.

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Ships from which of the following countries have to cross the Strait of Hormuz to reach out to the Indian Ocean?

1. Bahrain
2. Syria
3. Qatar
4. Egypt

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Match List I with List II and select the answer using the code given below the Lists:

Which of the following statements in relation to NIRANTAR (a platform under the Ministry of Environment, Forest and Climate Change) is/are correct?

1. Ecosystem Survey and Analysis is a vertical under this platform, the lead institute of which is Botanical Survey of India, Kolkata.
2. Research and Management of Ecosystem Service is a vertical under this platform, the lead institute of which is Central Zoo Authority, New Delhi.
3. Capacity Development Support is a vertical under this platform, the lead institute of which is Indian Institute of Forest Management, Bhopal.

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The Chancellor of the Federal Republic of Germany visited India in January 2026. Which of the following is/are not correct in terms of outcomes of this visit?

1. Signing of a Memorandum of Understanding between the All India Institute of Ayurveda and the University of Hamburg
2. Signing of a Memorandum of Understanding on Youth Hockey Development between Hockey India and the German Hockey Federation
3. Establishment of a bilateral dialogue mechanism on the Indo-Pacific
4. Opening of an Honorary Consul of Germany in Lucknow

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Which of the following statements about DHRUV64 is/are correct?

1. It is the third chip fabricated under the DIR-V Programme with an overall aim to enable the creation of microprocessors for India.
2. It is India's first homegrown 1.0 GHz, 64-bit dual-core microprocessor.

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The Bureau of Indian Standards (BIS) recently introduced a national standard to test and assess bomb disposal systems. Which of the following statements with regard to this system is/are correct?

1. The new standard is known as IS 19445 : 2025.
2. It will improve interoperability of equipment across agencies.
3. It was developed by TBRL, DRDO in collaboration with the 30th Central Scientific Research Institute, Russia.

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