1. A soil-coring tool holds a total volume of 195 cm³ and weighs 43.62 g. The following mass data were gathered from an undisturbed, bulk sample collected from the soil of a local park with this tool:

1) Moist soil + coring cylinder = 373.29 grams

2) Oven Dry soil + coring cylinder: 342.24 grams

Given these data, what is the gravimetric water content of this soil sample in g water/g dry bulk soil?

2. The N excess/deficit factor for 100 kg of an organic material that contained 60% C (carbon) and 0.5% N (nitrogen) would likely be (assuming that 35% of the carbon is metabolized by microorganisms and the carbon and nitrogen are assimilated in a 10:1 ratio).

A. -2.15 kg (deficit, N immobilization)

B. -3.85 kg (deficit, N immobilization)

C. -2.50 kg (deficit, N immobilization)

D. -1.05 kg (deficit, N immobilization)

E. -1.60 kg (deficit, N immobilization

Answer rating: 100% (QA)

1 To determine the gravimetric water content of the soil sample in g waterg dry bulk soil we need to ... View the full answer