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Mercury has a large impact crater, the Caloris Basin, opposite which shock waves traveling through the planet created a region called the "jumbled terrain." Callisto has a large impact crater, Valhalla. What does the surface of Callisto look like on the opposite side from Valhalla?
Rival
in the context of goods, refers to a type of good for which one person's use diminishes others' ability to use it.
Club Goods
Goods that are excludable but not rival in consumption
Private Goods
Products or services that are consumed by one individual and cannot be used simultaneously by others.
Rival in Consumption
A characteristic of a good whereby its consumption by one individual prevents simultaneous consumption by another individual.
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