Final answer:
Recycling is the process of converting waste into reusable materials, and it offers numerous environmental benefits such as reducing landfill waste, conserving resources, and preventing pollution (Option 3).
Step-by-step explanation:
The term that refers to the process of converting certain kinds of waste into reusable material is recycling. This involves taking used materials, processing them, and making them suitable for reuse.
Commonly recycled items include paper, glass, plastic, and metals. The benefits of recycling are numerous as it helps in reducing the waste in landfills, conserving natural resources, saving energy, and reducing pollution.
There are a variety of ways in which recycled materials can serve new purposes.
For example, wastewater can be treated through water reclamation methods to serve for irrigation, replenishing groundwater, or even reaching drinking water standards after appropriate treatment.
This process is essential for waste management and environmental sustainability.
Hence, the correct answer is Option 3.