Understanding the Importance of Coral Reefs

Very Hard Basic Comprehension Main Idea

Dr. Emily Johnson, a marine biologist, spoke recently on the vital role that coral reefs play in maintaining ocean ecosystems. She highlighted that coral reefs provide habitats for a diverse array of marine species. Furthermore, these ecosystems are crucial for protecting coastlines from erosion and supporting local economies through tourism and fishing.

Dr. Johnson's research shows that coral reefs cover only about 0.1% of the ocean floor, yet they support a significant portion of marine life. She pointed out alarming trends concerning coral bleaching caused by rising sea temperatures and ocean acidification. During her talk, she emphasized the importance of conservation efforts, advocating for immediate action to reduce carbon emissions and promote sustainable practices.

In conclusion, Dr. Johnson urged the audience to understand the interconnectedness of coral reef health and global environmental issues, stressing that without effective conservation efforts, we could lose these vital ecosystems within a generation.

Note: This question has been adapted from its original format to accommodate a reading-based version. In the official TOEFL exam, speaking and listening sections require verbal responses and audio prompts, which are not represented here. Please note that this adaptation may not fully reflect the nature or difficulty of the official exam. The audio feature for these sections will be available soon.

Select all that apply:

Coral reefs are primarily responsible for the decline of marine species.

Rising sea temperatures pose a serious threat to the health of coral reefs.

Coral reefs serve as important ecosystems supporting both biodiversity and local economies.

Conservation efforts are essential to protect coral reefs and their associated ecosystems.

Coral reefs have minimal impact on ocean ecology despite their small coverage.

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