Final answer:
Wood is the correct answer because it is a renewable resource that can be replenished naturally and quickly, unlike plastic, metal, or glass. The replenishment of wood relies on sustainable forestry practices to ensure its continued availability as a natural resource.
Step-by-step explanation:
The natural material that can be replaced relatively quickly through natural processes is wood. Unlike plastic, metal, and glass, which take a significant amount of time to decompose and are not considered renewable resources, wood is replenishable as it comes from trees that can be regrown in a relatively short period.
It's important to acknowledge that while recycling is a great way to manage resources and reduce waste, recycling materials like plastics, glass, and metals require energy and sometimes generate pollution. In contrast, wood is a renewable resource because it can be replenished by natural processes as quickly as humans use it, as long as sustainable forestry practices are followed.
This makes wood a more environmentally friendly option compared to non-renewable materials. Using renewable resources and promoting recycling are both vital steps towards sustainable environmental practices.