What was the main reason that urban planners placed parks in the middle of cities​

so urban planning concerns itself with both the development of open land and the revitalization of existing parts of the city, thereby involving goal setting, data collection and analysis, forecasting, design, strategic thinking, and public consultation.

Urban planning was also city planners soughing to restore a measure of serenity to the environment by designing recreational areas. Helped improve city life by adding boating, tennis facilities, a zoo, and bicycle paths. Brought up the park's beauty.

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the right answer is the constitution

whats the question? im not quite understanding your question.