D. North and South Vietnam were united under communist rule.
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Answer:
The Brazoria National Wildlife Refuge is a 44,414-acre (179.74 km2) wildlife conservation area along the coast of Texas (USA), east of the towns of Angleton and Lake Jackson, Texas. It borders Christmas Bay and the Intracoastal Waterway, separated from the Gulf of Mexico by Follet's Island.
<span>Mixed market economies focus on preserving as much freedom to make economic choices as possible. Governments in these economies have limited involvement in managing and regulating the economy. In contrast, command economies are focused most on preserving and requiring equal opportunities, which means governments that greatly regulate the economy. More economic systems are geared toward offering producers and consumers the freedom to make economic choices, so mixed market economies are more common in the world today.</span>