(Solution) - Consider each of the following activities or events and say -(2025 Original AI-Free Solution)

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Consider each of the following activities or events and say for each one whether it creates an externality. If so, say whether it creates an external benefit or external cost and whether the externality arises from production or consumption.
? Airplanes take off from LaGuardia Airport during the U.S. Open tennis tournament, which is taking place nearby.
? A sunset over the Pacific Ocean
? An increase in the number of people who are studying for graduate degrees
? A person wears strong perfume to class.