Troubling future for fish as ocean oxygen levels decline

Pre-reading questions: I will read each question. Then, please answer them. What is the significance of oxygen levels in the ocean for marine ecosystems? What are the primary factors contributing to the decline in ocean oxygen levels? Vocabulary: I will read the words, meanings, and sample sentences. Then, repeat after me. survive /ser-VAHYV/ [verb] – to continue to live or exist, especially after coming close to dying or being destroyed or after being in a difficult or threatening situation Despite facing many challenges, the stranded explorers used their resourcefulness and teamwork to survive in the unforgiving wilderness. struggle /STRUHG-uhl/ [verb] – to experience difficulty and make a very great effort…
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