What role does water play in the creation of peat swamp forests? a) excess water in the soil causes greater rates of decomposition, which leads to peat formation. b) high salinity leads to a decrease in the rates of decomposition, which leads to peat formation. c) excess water in the soil causes lower rates of decomposition, which leads to peat formation. d) the seasonal presence of water makes the variation in decomposition lead to the formation of peat.