Part 1: The phenomenon of wood combustion in a campfire exemplifies a fascinating chemical transformation in which carbon molecules from the wood react with atmospheric oxygen, yielding carbon dioxide and water vapor as products. This exothermic reaction, known as combustion, liberates the energy stored within the molecular bonds of the wood, resulting in the emission of both heat and light. Interestingly, the residual ash left in the aftermath consists of inorganic minerals that remained unburned during the combustion process. Consequently, the mass of the ash is invariably less than that of the original wood, as a substantial portion of the mass is converted into gaseous byproducts that are expelled into the atmosphere.
Part 2: Within the intricate tapestry of ecosystems, decomposers fulfill a pivotal role by meticulously breaking down dead organic matter and detritus into simpler, more accessible substances. This decompositional process not only facilitates the recycling of nutrients but also enriches the soil with vital elements such as nitrogen, phosphorus, and potassium, which arise from the breakdown of organic materials. These nutrients, now made bioavailable, are readily absorbed by the roots of plants, thereby fostering their growth and development. Thus, decomposers are integral to the nutrient cycling mechanism and the overall health of ecosystems, ensuring that vital resources are continually replenished and made available for the sustenance of living organisms.