Have students simulate waste decomposition by creating a small landfill.

The fastest waste decomposition generally occurs in the uppermost layer of solids exposed to the air.

Livestock waste decomposition occurs either aerobically or anaerobically.

Other sources of CO2 include industrial processes, such as cement making, which produces carbon dioxide when the calcium carbonate is heated and waste decomposition.

A geomembrane cover to seal off the completed landfill cell serves to contain harmful methane gas which is a product of waste decomposition.

The capacity can be improved by surface movement and water circulation such as through aeration, which not only improves oxygen exchange, but also waste decomposition rates.

Fairway also uses waste-to-water technology as part of its waste decomposition system to eliminate the hauling of solids to landfills.

Bacteria, plants and invertebrates are a crucial link in ecological processes including oxygen generation, nitrogen fixation, nutrient cycling, waste decomposition, water cleansing and soil formation.

Generated from landfill waste decomposition, biogas is a local and renewable energy that serves 93% of the thermal energy needs for Cascades' Rolland Mill.

Methane comes mainly from agriculture, waste decomposition (almost entirely landfill) and fugitive emissions from the energy sector, and accounts for about 23 per cent of total Australian greenhouse gas emissions.

Bacteria, algae, fungi, trees, and invertebrate animals play powerful roles in essential ecological processes, such as oxygen generation, nitrogen fixation, nutrient cycling, waste decomposition, water purification, soil formation, and climate control.

The presence of fish waste floating on the surface and washed up on shore, and the attraction of scavengers, the proliferation of bacteria and parasites, as well as the odours associated with waste decomposition will likely distract from the aesthetic value of the area.