Final answer:
Decomposition generally happens more quickly in moist environments because these conditions are better for the growth and activity of decomposers like bacteria and fungi.
Step-by-step explanation:
Decomposition typically proceeds faster in moist environments compared to dry environments. This is because moisture creates a more suitable habitat for decomposers like bacteria and fungi to thrive. For instance, increasing humidity can lead to reduced evaporation rates, maintaining a moist environment which is more conducive to the decomposition process. In contrast, environments like bogs have low oxygen content and contain organic acids, which lower the pH and reduce the rates of decomposition due to the inhibition of oxidation processes.
Furthermore, while fungi are crucial decomposers capable of breaking down complex organic matter, they require moisture to grow and disperse spores which further propagate the decomposition process across various environments.