You are given a question, its answer, and a sentence that supports the question, i.e., the answer to the question is inferable from the sentence. In this task, you need to paraphrase the given sentence so that the paraphrased sentence still supports the question i.e. you can still infer the answer to the question from the paraphrased sentence. Do not write a paraphrase with a minor change in the given sentence e.g. replacing the word "one" with "a". Instead, try to write a paraphrase that contains new words, i.e. the words that are not present in the input sentence.

Q: Question: On a global scale, plants and other photosynthetic organisms have generated all of what element in the air? 
Answer: oxygen. 
Sentence: On a global scale, plants and other photosynthetic organisms have generated all of the oxygen in the air.

A: All of our oxygen is generated by photosynthetic organisms.
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Q: Question: What occurs when excess carbon dioxide in the atmosphere causes the oceans to become acidic? 
Answer: ocean acidification. 
Sentence: Ocean acidification occurs when excess carbon dioxide in the atmosphere causes the oceans to become acidic.

A: A more acidic ocean as a result of excess carbon dioxide in the atmosphere is known as ocean acidification.
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Q: Question: What are fast moving rivers of air that are going in opposite directions called? 
Answer: jet streams. 
Sentence: Jet streams are fast moving rivers of air that are going in opposite directions called.

A:
Fast moving rivers of air going in opposite directions are called jet streams.
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