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Answer:
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1.how scarce resources are allocated by different economic systems.
2.People respond to incentives in a predictable manner. New Yorkers will park legally to prevent their cars from being towed.
3.A computer programmer creates a new computer game that uses new technology to help children with speech impediments.
4.opportunity cost
7.A person wants an endless supply of everything but cannot have it.
9.one in which marginal benefits are greater than marginal costs
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The ozone hole is one of the largest impacts humans have had on Antarctica. Each winter a polar vortex forms in the stratosphere over Antarctica with temperatures plummeting to as low as – 85° Celsius in the lower atmosphere.
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