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(a) found/learnt; (b) increasing/posing; (c) Due; (d) supply; (e) soon/entirely
It is (a) found/learnt from the passage that global warming is (b) increasing/posing a great threat to fish population. (c) Due to global warming, food production and oxygen. (d) supply in water decrease. As a result, some fish may be extinct (e) soon/entirely.
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