Essays on Humus

Economic issues of global warming are the most controversial and crucial nowadays.

In the nineteenth century, the volume of CO2 in the air was much less than today. Recently in the world rate of accumulation of this gas in the atmosphere has become unprecedentedly high. The majority of scholars consider that this problem is directly connected with economic growth. The inevitability of a number of difficulties that arise in connection with this process is the main problem along with the need for a relatively short period of time to adapt many economic activities to a rapidly changing climate and other components of the environment. Pessimistic forecasts the possible effects of anthropogenic ...

There is evidence from the excavation to show that the site was occupied continuously. The lower most layer is a layer of sterile soil. This is an indication of a period in which there were no inhabitants in the site. However, the subsequent layers show evidence of the evolution of the inhabitants of the site over several hundreds of years. The commonality of some artifacts in two subsequent layers is an indication of the fading of one civilization over time and the rise of another civilization with different activities. There is also evidence of various activities at the excavated ...

Composting is a process where organic materials in soil are transformed into a dark rich matter referred to as humus or compost (Swartzbaugh, 1993). The process can be biological or could involve using the latest technology to aid in composting. Humus is important in soil as it enhances fertility, workability, drainage, and water retention capacity in soils. MSW (Municipal Solid Waste) generally referred to as ‘garbage’ is an important source of organic matter to soils when treated through composting procedures. MSW majorly contains waste food, containers and packaging, batteries, old furniture, tires, and oils (Robinson, 1986). However, when introduced directly ...