The adjective clause is similar to the simple adjective in that that it describes, or refers to, or modifies the noun which precedes it. Having that in mind, the adjective clause in this sentence is 'you saw at the coffee shop', because it modifies the noun 'the man'.
This is actually true, and incredibly interesting. The phrase wasn't even used this way until Orwell decided to use it.
The main idea of the passage is People believed that eating carrots would improve their night vision due to a British media campaign.
The general eye health benefits of carrots are due to their high vitamin A content. The origin of that myth is British propaganda from World War II. The German Luftwaffe, or air force, started nighttime bombing Britain in 1940. In response, the British government issued a directive ordering citizens to turn down their lights in an effort to make it more challenging for German aircraft to reach their intended carrots targets. The British air force was able to locate and shoot down the German aircraft without using light because to a new technology called radar. The government told the media that its pilots could see the German planes because they ingested so many carrots in order to conceal the technology. As a result, individuals started to think that eating carrots would improve their night vision.
To learn more about carrots refer the link:
brainly.com/question/14862060
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Listening, Effective communication, Using your eyes and ears, Resloving conflict, Interperting body language.