<documents_info>Mangrove Forests: A Biodiversity Hotspot,Coral Reef Ecosystems: Importance and Threats,The Arctic Tundra: A Fragile Ecosystem Under Threat,The Amazon Rainforest: Lungs of the Earth,The Serengeti-Mara Ecosystem: The Great Migration</documents_info>
<query>Which document from the collection would provide information about the unique challenges faced by polar ecosystems?</query>
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<documents_info>Mangrove Forests: A Biodiversity Hotspot,Coral Reef Ecosystems: Importance and Threats,The Arctic Tundra: A Fragile Ecosystem Under Threat,The Amazon Rainforest: Lungs of the Earth,The Serengeti-Mara Ecosystem: The Great Migration</documents_info>
<query>Which document from the collection would provide information about the unique challenges faced by polar ecosystems?</query>
user
Chunk
assistant
<query>Which document from the collection would provide information about the unique challenges faced by polar ecosystems?</query>
<documents_info>Mangrove Forests: A Biodiversity Hotspot,Coral Reef Ecosystems: Importance and Threats,The Arctic Tundra: A Fragile Ecosystem Under Threat,The Amazon Rainforest: Lungs of the Earth,The Serengeti-Mara Ecosystem: The Great Migration</documents_info>