♻️ap environmental science review

Biomass

Written by the Fiveable Content Team • Last updated September 2025
Verified for the 2026 exam
Verified for the 2026 examWritten by the Fiveable Content Team • Last updated September 2025

Definition

Biomass refers to any organic matter derived from plants or animals that can be used as an energy source. It includes materials such as wood chips, crop residues, animal manure, and even dedicated energy crops like switchgrass.