PYQ Bank — UPSC Civil Services

Statement 1 is incorrect; only amendments affecting federal provisions (Article 368) require State ratification.

General amendments need only Parliamentary approval.

Statement 2 is correct—Basic Structure amendments require 2/3 majority in both Houses but do NOT require State ratification, as established by judicial precedent.

Statement 3 is incorrect because while amendment procedures can be amended, alterations to the basic amendment mechanism itself are restricted by the Basic Structure doctrine following the Kesavananda Bharati judgment, creating an implicit limitation on amending Article 368 itself.

Statement 1 is incorrect; the Constitution does not restrict the President to returning a bill only once—theoretically, a bill could be returned multiple times, though this is rare in practice.

Statement 2 is correct as per Article 111; if Parliament passes the same bill again (whether with or without amendments) after Presidential return, the President cannot withhold assent and must give it.

Statement 3 is correct; the President's power under Article 111 applies to all bills, including Private Members' Bills, making the President a constitutional check on both Government and Private legislation.

The Subsidiary Alliance was a sophisticated mechanism that brought Indian states under British control through enforced military presence, treaty obligations, and financial burdens, without necessarily annexing territories immediately—achieving hegemony through structural dependence rather than conquest alone.

This system was more efficient than direct annexation as it used Indian resources and rulers' compliance to expand British dominion, creating a buffer of nominally independent but practically subordinate states.

It represented an evolution in colonial strategy that would become the template for much of British Indian expansion in the nineteenth century.

Anekantavada emphasized that truth could be perceived from multiple perspectives, fostering intellectual pluralism that influenced how Jain kingdoms approached governance and coexistence with other faith communities—yet this philosophical openness did not automatically produce democratic institutions but rather created space for relatively greater tolerance and institutional diversity within monarchical structures.

Mauryan Emperor Ashoka and other Jain-influenced rulers demonstrated this tendency toward acknowledging multiple traditions while maintaining centralized authority.

The principle had real political consequences in promoting religious tolerance and accommodating diverse practices, even if it did not fundamentally alter autocratic governance systems.

Statement 1 is correct as the Thar Desert spans across Rajasthan (major portion), parts of Gujarat, Haryana, and extends into Pakistan (Sindh and Punjab provinces).

Statement 2 is correct as the Aravalli Range acts as a natural barrier that has limited the eastward expansion of the desert and creates a transition zone.

Statement 3 is correct as the western parts experience active sand dunes with minimal vegetation due to extreme aridity, while the eastern parts show stabilized dunes with vegetation cover due to relatively higher rainfall.

Statement 4 is incorrect because while the Thar is arid, rainfall varies significantly—some parts receive less than 100mm while eastern margins receive up to 500mm, so it's not uniform.

This question tests nuanced understanding of desert ecosystems and geography.

Stagflation presents a policy dilemma because traditional Phillips Curve trade-offs break down—conventional expansionary policies risk accelerating inflation further. A Keynesian approach to stagflation, particularly when caused by supply shocks (as with oil prices or commodity inflation), recommends contractionary fiscal policy to manage aggregate demand while simultaneously implementing supply-side reforms to increase production capacity and reduce cost pressures.

Option A is theoretically contradictory as it combines opposing policies without clear direction.

Option B would worsen inflation, a major concern during stagflation.

Option D ignores the demand management aspect.

India faced stagflation challenges in 2022-23, requiring RBI to carefully balance growth concerns with inflation targeting while the government focused on supply enhancement.

Statements 1 and 2 are correct: Aurora Borealis results from solar wind particles channeled by Earth's magnetic field colliding with atmospheric gases, and magnetospheric substorms occur from magnetic reconnection releasing stored energy in the magnetotail.

Statement 3 is incorrect: Van Allen Belts are regions of trapped charged particles (mainly from solar wind and cosmic rays) held by Earth's magnetic field, not formed by cosmic ray concentration due to atmospheric pressure.

The Van Allen Belts are stable radiation zones, not dynamic phenomena caused by atmospheric pressure variations.

Phenological mismatch refers to the disruption in synchronization between the timing of life cycle events of interdependent species caused by differential responses to environmental cues, particularly climate change.

For example, if plants flower earlier due to warming but their pollinators emerge later, the mismatch can reduce successful reproduction.

This has cascading effects on food webs and ecosystem functioning.

Option A describes phenotypic plasticity limitations, Option C describes reproductive isolation, and Option D describes spatial genetic differentiation—none of which address the temporal desynchronization that defines phenological mismatch.

This concept is crucial in understanding climate change impacts on ecosystems.

The 'One Sun One World One Grid' initiative conceptualizes a global solar energy infrastructure that leverages time zone differences to ensure continuous solar power availability.

Statement 2 is incorrect as this initiative was first proposed earlier by India, though it gained prominence during the G20 presidency.

The core idea (statements 1 and 3) is scientifically sound: by linking solar grids across continents, when one region experiences night, another experiences day, enabling theoretically continuous renewable energy supply globally.