Define 'natural cemetery.'

A natural cemetery is defined as a burial ground that emphasizes environmentally friendly practices. This type of cemetery is designed to be in harmony with nature and often promotes the use of biodegradable materials for coffins, natural burial shrouds, and generally discourages the use of traditional burial practices that involve chemicals and non-biodegradable materials.

This approach to burial aims to minimize environmental impact, enabling the body to decompose naturally and contribute to the surrounding ecosystem. Natural cemeteries may also feature native plant landscaping and preservation of natural habitats, further aligning with sustainability principles.

The other choices do not align with the concept of a natural cemetery, as they focus on practices that are contrary to the environmental ethos of this type of burial ground.