SPSS Spring 2025 courses PLSC Course DescriptionsSPSS Course SpotlightSPSS Spring 2025 coursesPLSC Fall 2025 courses SPSS Spring 2025 courses SPSS 2120 2120. Environmental Soil Science 3.00 credits Prerequisites: None. Grading Basis: Graded Introduction to the physical, chemical and biological properties of soils. The relationship between soils and the growth of higher plants. Impact of soils on environmental quality. CA 3.