Task reminder: Follow the transcript as the audio plays. Type the missing word in each blank exactly as heard. Spelling must be precise.

1. Sample Audio 1 — Coffee Culture

The global coffee industry is worth over (1) dollars annually, making it one of the most (2) traded commodities in the world. The two main species grown commercially are Arabica, which (3) for about sixty percent of production, and Robusta. Coffee (4) are particularly threatened by climate change, as the crop requires specific temperature and rainfall (5) .

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2. Sample Audio 2 — Coral Reefs

Coral reefs cover less than one percent of the ocean (1) but support around twenty-five percent of all (2) species. They are built by tiny (3) that secrete calcium carbonate skeletons. Rising ocean temperatures cause coral (4) , in which the coral expels its symbiotic algae and turns white. Without the algae, the coral loses its food source and may (5) .

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