The living microbial biomass includes<span> the microorganisms responsible for decomposition (breakdown) of both plant residues and active </span>soil organic matter<span> or detritus. Humus is the stable fraction of the </span>soil organic matter<span> that is formed from decomposed plant and animal tissue. It is the final product of decomposition.</span>
El Niño is a climate pattern that describes the unusual warming of surface waters in the eastern equatorial Pacific Ocean. Trade winds and atmosphere are also impacted by El Niño.
