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Read the passage and mark the letter A, B, C or D on your answer sheet to indicate the best answer to each of the following questions from 3...

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Read the passage and mark the letter A, B, C or D on your answer sheet to indicate the best answer to each of the following questions from 31 to 40.

        Contrary to the trope of a regulatory vacuum, geoengineering already sits under a dense, restrictive canopy of norms. Since 2008, the Convention on Biological Diversity (CBD) instituted an effective moratorium on ocean fertilization, widened in 2010 to a de facto pause on geoengineering; Parties reaffirmed it in 2016 and again at COP16 in 2024 as outdoor trials proliferated. The moratorium permits only narrowly tailored, justified, small-scale research subject to impact assessment and no transboundary harm, while commercial purposes are excluded. [I] The problem, therefore, is erosion of compliance, not a lacuna of rules.

        Marine interventions are likewise cabined by the London Convention/Protocol: ocean fertilization was effectively prohibited in 2008, and 2013 amendments created a rubric to regulate marine geoengineering, with 2023 guidance deferring activities other than legitimate scientific research. It has signaled restrictions on biomass dumping, ocean alkalinity enhancement, marine cloud brightening, and microbubbles. Exemptions for research are tightly drawn and explicitly preclude commercial elements, acting as a bulwark against carbon-credit schemes masquerading as science. [II] Even so, proposals crowd the horizon.

        Beyond treaty silos, the precautionary principle and duties to prevent transboundary harm – codified in the Rio Declaration and echoed in CBD decisions – loom large. [III] In 2024, International Tribunal for the Law of the Sea (ITLOS) advised that introducing pollutants or transforming one form of pollution into another could breach United Nations Convention on Law of the Sea (UNCLOS), while human-rights bodies warn that solar and marine schemes may jeopardise life, food, water, health, and Indigenous Free, prior and informed consent (FPIC). Modeling even anticipates monsoon disruption; those least responsible for emissions would bear disproportionate risk, including future generations under the Maastricht Principles.

        Despite this architecture, experiments have multiplied: hundreds of open-air and open-water trials, sharply accelerating since 2019. Voluntary carbon markets, abetted by contested COP29 rules on removals, risk opening a backdoor for commercialization that undermines mitigation and rewards polluters. [IV] Counter-currents gather: over 500 scholars urge a Solar Geoengineering Non-Use Agreement; the African Ministerial Conference on the Environment and the European Parliament endorse non-use, with Vanuatu, Fiji, and others voicing support; governments are pressed to forbid outdoor trials, withhold public funding and patents, and enforce existing moratoria.

(Adapted from Center for International Environmental Law, Mary Church, “Geoengineering Governance: Restrictive Framework Must Be Upheld and Strengthened,” March 5, 2025)

Question 31. The word moratorium in paragraph 1 mostly means ______.

A. purely symbolic                                        B. temporarily prohibitive

C. broadly permissive                                D. loosely discretionary

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        The Covid-19 pandemic shook global supply chains to their core, and they have not yet fully recovered. Managers who once embraced lean, just-in-time routines often overcorrected toward ad-hoc, ill-defined “just-in-case” practices. The result was a glut: inventories surged across retail, wholesale, and manufacturing, even as the Business Confidence Index and Consumer Confidence Index swung erratically. With sentiment oscillating, planning horizons shrank, and contingency policies multiplied; yet crude stockpiles proved a blunt instrument rather than a nuanced hedge against uncertainty.

        When confidence whipsaws from month to month, the signal-to-noise ratio collapses and planning becomes brittle. When confidence lurches from month to month, planning grounded in stale numbers becomes perilous. Firms that chase yesterday’s indicators risk mistiming production, booking capacity at the wrong moment, or amplifying volatility through panic ordering. Some stabilize operations by pacing commitments, sequencing replenishment windows, and letting buffers breathe; nonetheless, a failure to discriminate between genuine demand and transient noise can still cascade through warehouses and storefronts.

        In apparel, the problem is magnified by time: buyers must place peak-season orders roughly six months ahead of shelves. With volatility high, June forecasts can diverge sharply from December realities. If predictions undershoot, stockouts surface and a coveted season is missed; if they overshoot, excess piles up and January brings bruising markdowns. Long lead times, once tolerable under steadier conditions, now act like an echo chamber, turning small misreads into outsized consequences that are difficult to reverse mid-cycle.

        Overstocking, then, is a costly insurance policy, not resilience itself. Durable resilience is quieter: calibrated safety stock, disciplined scenario thinking, and clearer sensing of genuine demand. Rather than hoarding, firms experiment with shorter decision cadences, staged commitments, and transparent thresholds that trigger adjustments. Where planning must be conditional, governance should be explicit; where buffers must exist, they should be measured. In turbulent markets, prudence lies less in volume than in timing, discrimination, and the agility to unwind missteps swiftly.

(Adapted from Harvard Business Review, “Using Technology to Improve Supply Chain Resilience,” Sept. 2023)

Question 1. The word ad-hoc in paragraph 1 can be best replaced by ______?

A.  improvised                B. deliberate                        C. standardized                D. prescheduled

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