Each autumn, forest floor is covered by leaves that have fallen from trees. which type of organism is most effective in decomposing the leaf tissue, allowing the nutrients and minerals to be recycled in the environment

The answer id B bactiria

Explanation:

chemical changes occur when a substance combines with another to form a new substance, called chemical synthesis or, alternatively, chemical decomposition into two or more different substances. these processes are called chemical reactions and, in general, are not reversible except by further chemical reactions. some reactions produce heat and are called exothermic reactions and others may require heat to enable the reaction to occur, which are called endothermic reactions. understanding chemical changes is a major part of the science of chemistry.