As noted in section $8\mathrm{.}1,$ field capacity can be defined as $(1)$ the moisture content at which $=340$ cm or $(2)$ the moisture content at which qz$=0\mathrm{.}1$ mm$/$d$.$ a$.$ Use the Brooks and Corey relations of table $7\mathrm{.}2$ and the parameters of table $7\mathrm{.}4$ to compute field capacities for a sand, a silt loam, a loam, and a clay using each of these definitions.