Closed landfills are now being converted into which of the following?

The conversion of closed landfills into recreational parks, nature preserves, and golf courses is a sustainable approach that repurposes land that is no longer in use for waste disposal. This transformation can enhance community green spaces, promote wildlife habitats, and offer recreational opportunities to local residents. Such redevelopment projects often involve extensive soil and groundwater monitoring to ensure the safety and viability of the new land use, alongside capping and controlling the original landfill material.

The other options present scenarios that are less common and may raise public health or environmental concerns. For example, establishing organic farms would require clean soil and water, which might not be viable depending on the contamination left by previous landfill activities. Creating new sources of clean drinking water directly from former landfill sites is typically not feasible due to potential contamination risks. Lastly, using these sites as nuclear waste storage facilities is generally not practical due to the regulatory and safety standards required for handling hazardous materials. Thus, while the redevelopment of landfills into parks and recreational areas is both practical and beneficial for communities, the other options do not align with established practices or safety concerns.