Answer:
Carbon dioxide
Step-by-step explanation:
Wood is composed of fibers and minerals. Fibers are nothing but the cellulose. Cellulose is polysaccharides that are made up of several units of glucose.
Minerals with in the wood include carbon, hydrogen and oxygen. When wood burn it react with oxygen and carbon with in it combines with oxygen to release carbon dioxide. Sequoia too while burning released carbon in the form of carbon dioxide.