Vermicomposting – The process whereby worms feed on slowly decomposing materials (e.g., vegetable scraps) in a controlled environment to produce nutrient-rich soil.

Volatile Organic Compounds (VOCs) - Compounds that evaporate from many housekeeping, maintenance and building products made with organic chemicals. These compounds may be released from the products both in use, and in storage. In sufficient quantities, VOCs can cause irritation and some are carcinogenic and are suspected of causing or exacerbating acute and chronic diseases. The health effects of VOCs at levels found typically in commercial indoor environments are still not completely known and continue to be a point for further study.