Midterm #2
Hi Anika
re: soil biology you should know major groups of organisms and their role in soil & some key organisms within each group. For example, macro-organisms - what are some example organisms that are important in soils, and what do they do (in soils).
re: problem set #2 - focus on the parts which relate to soil chemistry. As indicated in an earlier post, midterm #2 will concentrate on material related to soil chemistry and soil biology - thus you will not be asked a specific soil physics question such as using soil water potential to determine the direction of flow; BUT you do need to understand how texture, soil water retention etc. related to overall soil quality assessment (similar to question 6 on the in-class review where you compared characteristics of 3 soils).