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How do l remember all the positive and negative externalities?
There are many effective ways you could go about learning these, one way could be through creating question and answer flashcards with the name of a type of externality on the one side and the specifics on the other. You should then try to recall the specifics again and again. Eventually, they will become second nature and you should be able to reel them off instantly in the exam 🤩 . There are lots of learning techniques you may find helpful here www.bbc.co.uk/news/health-22565912
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