Final answer:
Tropical rain forests host 50% of the world's species despite covering a small percentage of Earth's surface. Deforestation poses a significant threat to these rich ecosystems.
Explanation:
Tropical rain forests are home to 50% of the world's species. These forests, covering only about 5% of the Earth's surface, support an incredibly rich biodiversity. Various activities like deforestation for cattle production, timber industry, and agriculture expansion threaten these vital ecosystems.
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