[2026] PTE Academic Reading - Re-order paragraphs

However, these vibrant underwater environments are currently facing a severe threat from the phenomenon of rising ocean temperatures.

Ultimately, the widespread loss of coral reefs would have devastating consequences for global marine biodiversity and coastal economies.

Without these algae, the corals lose their primary source of nutrition and become highly susceptible to disease and starvation.

Coral reefs are among the most biologically diverse ecosystems on Earth, supporting a vast array of marine life.

When sea temperatures exceed normal limits, corals undergo a process called bleaching, where they expel the colorful symbiotic algae residing in their tissues.