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This is a correct answer to the following question about Ozone depletion. Yes or no? Answer: Since the ozone layer prevents most harmful UVB wavelengths (280315 nm) of ultraviolet light (UV light) from passing through the Earth's atmosphere , observed and projected decreases in ozone have generated worldwide concern leading to adoption of the Montreal Protocol that bans the production of CFCs, halons, and other ozone-depleting chemicals such as carbon tetrachloride and trichloroethane . Question: what causes destruction of the ozone layer
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No

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This is a correct answer to the following question about Languages of the United States. Yes or no? Answer: Approximately 337 languages are spoken or signed by the population, of which 176 are indigenous to the area. Question: what is the official language of america?
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No

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This is a correct answer to the following question about Blood pressure. Yes or no? Answer: Mean blood pressure drops over the whole circulation, although most of the fall occurs along the small arteries and arterioles . Question: what contributes to high blood pressure
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No