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Describe how burning fossil fuels can warm the planet.
Perfect Substitutes
Products or services that can be used in exactly the same way, to the extent that one can replace the other in consumption without affecting utility.
Right Angles
Angles that measure exactly 90 degrees.
Indifference Curves
Graphical representations used in microeconomics to show combinations of two goods that provide equal satisfaction and utility to a consumer.
Nickels
Coins in the United States and Canada valued at five cents, made of a cupronickel alloy.
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