Recycling techniques involve various methods to process materials so they can be reused. Common techniques include mechanical recycling, where materials like plastic and metal are shredded and melted down to create new products. Another method is chemical recycling, which breaks down materials at a molecular level, allowing for the recovery of raw materials. Additionally, there are techniques like composting, which recycles organic waste such as food scraps and yard waste into nutrient-rich soil. Each technique helps reduce waste in landfills and conserves natural resources, contributing to a more sustainable environment.