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Allocative efficiency is achieved when the marginal benefit of a good
Prairie Potholes
Depressional wetlands scattered throughout the Upper Midwest of the United States and Canada, vital for waterfowl breeding and nesting habitats.
Retreating Glaciers
Glaciers that are diminishing in size and length due to melting, often cited as evidence of global climate change.
Food Chains
A linear sequence of organisms through which nutrients and energy pass as one organism eats another.
Terrestrial Biomes
Large community of plants and animals that occupies a distinct region of land, identified by its climate, soil, and vegetation types.
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