Fact 1: Decomposition increases amount of organic matter in soil. Fact 2: Organic Matter Organic matter is the varied array of carbon-containing compounds in the soil. Given the two facts above, what increases the amount of carbon-containing compounds in the soil?
OPTIONS:
a). nitrogen fixation
b). Greenhouse gasses
c). fossil fuels
d). chlorofluorocarbons
e). freezing
f). erosion
g). rainfall
h). decomposition
h).