Coastal wetlands are often described as the planet’s “blue carbon vaults”: living coastlines that lock away atmospheric carbon while also underwriting biodiversity, fisheries productivity, and storm buffering. Yet the climate conversation still tends to orbit smokestacks and tailpipes, overlooking the quieter infrastructure of mangroves, tidal marshes, and seagrass meadows—ecosystems whose protection delivers a rare triple dividend of mitigation, adaptation, and livelihood security. Their value is not decorative; it is operational, because coastal resilience is built not only from concrete but from functioning ecology. Blue carbon refers to carbon stored in coastal and marine systems, especially in vegetation and the sediment beneath it, where long – term burial can outlast political cycles. Although coastal habitats occupy less than 2% of the ocean area, the ocean drives about 83% of global carbon circulation, and these narrow fringes account for roughly half of the carbon sequestered in ocean sediments. In seagrass meadows, the carbon story is mostly a soil story: the overwhelming majority is held belowground, making disturbance a kind of ecological bank run. This disproportionate storage capacity turns small maps into large consequences. The problem is acceleration. Mangrove loss has been estimated at around 2% per year, while tidal marshes and seagrasses are also shrinking annually, producing a chain reaction: habitat degradation → sediment exposure → carbon release → amplified warming → intensified coastal risk. When these systems are destroyed, they can flip from sinks to sources, venting centuries of accumulated carbon back into water and air; some estimates suggest around 1.02 billion tons of CO₂ may be released each year from degraded coastal ecosystems—comparable to a significant share of tropical deforestation emissions. The irony is sharp: the coast becomes a “seawall” against storms, yet policy gaps can make it a leak in the climate ledger. [I] Effective action requires more than restoration slogans; it depends on measurement integrity, transparent baselines, and governance that prevents leakage, land grabs, or paper – only offsets. [II] A credible blue carbon agenda blends scientific coordination (to improve sequestration accounting and risk assessment) with policy architecture (to enable conservation finance, community participation, and long – horizon stewardship). [III] Without that alignment, blue carbon becomes another feel – good label; with it, it can become a measurable, investable pathway toward climate stability and coastal wellbeing. [IV] [Adapted from https://www.thebluecarboninitiative.org/] Question 31: Where in the passage does the following sentence best fit? What is being done is increasingly strategic, but still uneven. A. [I] B. [II] C. [III] D. [IV] Question 32: The term "triple dividend" in paragraph 1 is closest in meaning to __________. A. A three – fold increase in the total cost of coastal restoration projects. B. The rapid growth of three distinct species within a seagrass meadow. C. A set of three simultaneous benefits for the climate and communities. D. The financial profit earned from three different types of carbon trading. Question 33: The word "it" in paragraph 2 refers to __________. A. blue carbon B. vegetation C. marine system D. coastal habitat Question 34: According to paragraph 1, which of the following is NOT mentioned as a function of coastal "blue carbon vaults"? A. Assisting in the long – term sequestration of carbon from the atmosphere. B. Providing a natural defense mechanism against the impact of storms. C. Replacing industrial smokestacks as the primary source of clean energy. D. Supporting the productivity of fisheries and maintaining biodiversity. Question 35: Which of the following best summarises the content of paragraph 2? A. The majority of ocean carbon is found in the open water rather than in the narrow fringes of coastal habitats. B. Ocean sediments are primarily composed of political cycles that influence the long – term burial of vegetation. C. Coastal ecosystems play a vital role in global carbon storage despite occupying a tiny fraction of the ocean. D. Disturbance in seagrass meadows is considered an ecological bank run because it increases carbon circulation. Question 36: The word "integrity" in paragraph 4 is OPPOSITE in meaning to __________. A. honesty B. corruption C. stability D. unity Question 37: Based on paragraph 3, what occurs when coastal ecosystems are significantly degraded? A. They begin to absorb centuries of accumulated carbon from the surrounding water and air. B. The emissions released are much lower than those produced by the process of deforestation. C. They transition from absorbing carbon to releasing large amounts of it back into the nature. D. The ironical seawalls are strengthened by the sediment exposure caused by the chain reaction. Question 38: Which of the following best paraphrases the underlined sentence in paragraph 3? A. Had policy frameworks addressed existing gaps, the coastal areas would not have turned into a source of carbon leakage. B. If the coast became a seawall against storms, policy gaps would prevent the climate ledger from leaking information. C. No sooner had the coast acted as a seawall than policy gaps were found to be the main leak in the climate ledger. D. Were the climate ledger to have a leak, the coast would definitely become a seawall despite the existence of policy gaps. Question 39: Which of the following can most likely be inferred from the passage? A. Technological solutions like concrete seawalls are more effective than ecological infrastructure for long – term climate adaptation. B. The success of blue carbon initiatives depends as much on accurate scientific data as it does on inclusive policy frameworks. C. Tropical deforestation remains the only significant source of carbon emissions that policy makers should focus on globally. D. Community participation is only necessary when scientific coordination fails to improve the accuracy of carbon accounting. Question 40: Which of the following best summarises the passage? A. Coastal wetlands are decorative ecosystems that require scientific coordination and community participation to improve their sequestration. B. The acceleration of mangrove loss is the primary reason why blue carbon has become a feel – good label in the global climate conversation. C. Seagrass meadows and tidal marshes are the only ecosystems capable of delivering a triple dividend of mitigation, adaptation, and security. D. Protecting coastal ecosystems is a crucial yet overlooked strategy that requires integrated scientific and policy efforts to ensure climate stability. |