Similarly, cut off any decaying vegetation which may die back at this time of year. It is the process of decomposition from either leaves or plants, which raises the nitrate level and reduces the ...

The first step in coalmaking, he suggests, was that bacteria, in the underwater depths of the moldering swamps, drew the oxygen they needed from the decaying vegetation. It is this lack of oxygen ...

Smaller mammals and birds could survive the cold, desolate period because of their fur, feathers, and ability to eat seeds, roots, and decaying vegetation. The pollution eventually settled to the ...