Task reminder: Read all options before the audio starts. Select the paragraph that best summarises the recording. The correct answer matches the main idea and tone, not just one detail.

1. Sample Text 1 — Ocean Acidification

A. A. Ocean acidification is caused entirely by agricultural runoff entering coastal waterways, not by atmospheric carbon dioxide.
B. B. As oceans absorb carbon dioxide from the atmosphere, their acidity increases, threatening marine organisms that build calcium carbonate structures and the food webs that depend on them.
C. C. Ocean acidification has reached a level that has already caused the extinction of the majority of coral species.
D. D. The oceans can absorb unlimited amounts of carbon dioxide because their vast volume neutralises the acidity.

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2. Sample Text 2 — Microfinance Evaluation

A. A. Microfinance programmes have been proven to eliminate poverty wherever they have been implemented.
B. B. Evidence suggests microfinance improves financial resilience but has weaker long-term effects on income and poverty reduction than originally claimed.
C. C. Grameen Bank’s model has been shown to be ineffective and is no longer being replicated internationally.
D. D. Microfinance is only effective for male entrepreneurs and has no measurable impact on women’s economic empowerment.

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