Q27 · UPSC Prelims 2026 · Set A · Science and Technology

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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. Select the answer using the code given below:

Page facts
Exam
Union Public Service Commission — Civil Services Examination (UPSC)
Board
UPSC
Stage
Prelims
Year
2026
Paper
UPSC Prelims — Prelims General Studies Paper I (General Studies)
Booklet
Set A
Question
Q27
Topic
Science and Technology
Syllabus
Science, technology, space, defence, IT — Prelims GS Paper I.
A 1 only
B 1 and 2
C 2 and 3
D 3 only

Correct answer: (a) 1 only

Explanation

  1. A

    1 only

    1 only. Statement 1 is correct because local community initiatives and conservation efforts in Nagaland, particularly around Doyang Lake, transformed the area from a massacre site into a safe haven for Amur falcons, showcasing successful community-led protection of migratory species.

  2. B

    1 and 2

    Statement 2 is incorrect because advanced tracking technologies such as satellite telemetry are scientific tools used by researchers to study migration routes, not guidance systems that physically guide the birds back to their stopover sites.

  3. C

    2 and 3

    Statement 3 is incorrect because Amur falcons are long-distance migrants breeding in Siberia and Northern China and wintering in Southern Africa, and they have not become permanent residents in India.

  4. D

    3 only

    Statement 4 (or option d) is incorrect because statement 3 is factually wrong regarding permanent residency, making choices involving statement 3 invalid.

Summary. Official key is (a). Sustained grassroots conservation and local community protection in Nagaland have successfully safeguarded the migratory stopover of Amur falcons, while tracking technologies only monitor migration and the birds remain transcontinental migrants rather than permanent residents.

Same topic · past papers

UPSC has asked this before

These previous-year questions sit on the same topic. Open one to practise the earlier ask.

  1. 2019 · Q75 · General Studies · 2 marks

    With reference to communications technologies, what is/are the difference/differences between LTE (Long-Term Evolution) and VoLTE (Voice over Long-Term Evolution)? 1. LTE is commonly marketed as 3G and VoLTE is commonly marketed as advanced 3G. 2. LTE is data-only technology and VoLTE is voice-only technology. Select the correct answer using the code given below

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